Generally, white dogwood cultivars are more susceptible to spot anthracnose than pink cultivars. Pages on this site may include affiliate links to Amazon and its affiliate sites on which the owner of this website will make a referral commission. To alleviate the stress of the leaves, turn the garden hose into a trickle and let it flow at the base of the tree twice a week for half an hour during hot summer days. Soil: Kousa dogwoods do best in well-draining, moist rich soil that's not too heavy. Measure the soil pH & if the range is between 5.5-6.8, then it is okay. Moss Control Prepare the soil properly. On dogwood trees, Mycrosphaeria pulchra is the causal pathogen for powdery mildew. The best that fungicides can do is stop spreading the attack further. You can also reduce the risk of fungal leaf spot infections by. Hands-On Gardening 2023. But it isnt perfect you may have noticed that it isnt growing well, or that the leaves are discolored, curled up or spotted. Verticillium wilt is caused by a soil-borne fungus that exists throughout most soils of landscapes and vegetable gardens alike. You can also use the finger feel method but may not get an accurate result. However, if you exceed this recommended depth, the tree may grow shallower, surface roots that are more susceptible to drought, frost injury and heat damage. Since Dogwood is a flowering tree, the fungal attack is a great concern. First of all, keep your garden & gardening tools clean. Spring The other leaves further down the branch are fine and branches without flower buds have no curl on any of their leaves, see photos. These berries will attract birds, deer, small mammals, and possibly neighbors in the know who are interested in wine and jelly making. Continue to water at the base of the tree until cooler fall weather arrives, even if it drops its leaves early. In drought, they undergo leaf curling, also caused by aphids, and leaf scorch. Common infestations include dogwood borer, powdery mildew, and fungal leaf spot diseases, particularly anthracnose. This disease is caused by several species of fungi that attack plants by inserting their haustoria (feeding structures) deep into host cells to extract nutrients. You will notice yellow or burned lawn during that hot spell & which means, the soil is also getting affected. If you check the downside of the leaf, you may find a colony of them. ), Dogwood tree has few or no berries? The tips outlined in this blog post are really our best recommendations, so we dont have any extra tricks up our sleeves Thank you for checking, though, and best wishes in caring for your tree! Could this be related to the damage or the heat waves this year? Pruning, Perennials, and a Recipe for Mildew Stains. If the tree drops its leaves early this year but the branches arent brittle, continue to care for it through the rest of the year and see how it looks next spring. Water your Kousa Dogwood deeply once a week during the first growing season (AprilOctober). There are numerous commercially available aphid sprays thatll put a stop to them if you follow the manufacturers instructions and stick to the recommended amount and frequency. Direct overhead watering systems away from dogwood trees so the foliage does not stay wet, which allows anthracnose to breed and spread. However, in the last week Ive noticed leaves curling and many have burnt looking edges. I have a background in science and education, but love to get hands-on experience when it comes to nature, making my own gardening mistakes and learning from them! 2023 Vander Giessen Nursery, Inc. | All Rights Reserved | 401 E. Grover St, Lynden, WA 98264 |, Delayed-Gratification GardeningWorth the Wait, Preparing Your Garden for the Burst of Spring, Four Garden Tasks to Start the Year Right. Thank you! If leaf scorch is severe, give the tree a really deep watering once every 4-6 weeks the following winter as well, as long as the temperatures above freezing (freezing over the roots will make the problem worse). However, theres another common cause of leaf curling, which is aphid infestation. I'm Al. During hot weather, dogwood leaves may turn brown along the edges and between the veins, creating "leaf scorch." Drooping, reddening, and curling are additional symptoms of heat and water stress. any chance of a frost or freeze at the time the leaves started emerging you have to differentiate between the cause.. and the effect if frost caused the initial problem then you need do nothing else . if the damaged leaves.. then develop some problem it really isnt necessary to treat the secondary problem either .. most trees can reflush at least once after a severe frost.. without any long term problems did you have a horrible winter ??? They are not dryit looks like a willow? Hanging baskets The flowers may exhibit small purple/brown spots on the petals as well. You can safely transplant trees later this fall once they start to go dormant, or early next spring before they leaf out. The tree was planted as a memorial and I dont want to lose it. Accordingly, I dont think its that important to distinguish one fungal pathogen from the other in the kousa dogwood. The crown eventually grows wider than it is tall on many specimens. Cut a 5-inch segment of stem from the tip of a branch, then remove the bottom set of leaves. Parsley Seedlings Turning Yellow: How to fix this? Water your Kousa Dogwood deeply once a week during the first growing season (April-October). From your photos it appears your dogwood has Leaf Scorch. Maybe some fencings needed. Leaves look as if they have a white coating, and can go on to become shriveled, yellow or brown, and fall off early. Lawn Care Environmental disorders and infectious diseases may cause dogwoods leaves to cup and curl, and can threaten the trees health wherever it grows. Hi Sandy, if your soil is decently well-drained, it would be almost impossible to overwater during the first year. Join our E-Garden Club to receive our monthly e-mail newsletter. The best part is their resistance to pests and diseases. Thanks for checking with us! A more attainable goal is to manage the environmental influences that favor the disease. Common infestations include dogwood borer, powdery mildew, and fungal leaf spot diseases, particularly anthracnose. The height of a mature tree and the cost of treating it typically outweigh the benefits. Looking forward to to hearing from you . Thanks. Some leaves have started to turn red already. Sometimes referred to as the Chinese dogwood, this Asian is a cousin to our native flowering dogwood. Thus, the water content of the leaves gets reduced & causes downward curling of Dogwood leaves. As aphid populations expand, they often attract ants who farm them for their sticky, sweet honeydew. Sporting masses of white, pink or red flowers, which are actually colorful bracts, the dogwood tree often pays a price for its beauty. Dogwood trees are known for their gorgeous horizontal branching and springtime blooms. Both over-watering & under-watering are not suitable for Dogwood. Leaves are dropping and looks like a white powder on some leaves. Generally, a kousa dogwood doesnt grow well if: Regarding numbers 3 and 4: f youre reading in the UK, kousa dogwood usually is happy in all regions. We live in Tri-Cities, Washington. Prepare the soil properly. If the soil gets dry easily, cover the root area with accurate mulch. Viral diseases that typically affect Kousa Dogwood plants include Cucumber Mosaic Virus (CMV), Raspberry Bushy Dwarf Virus (RBDV), and Verticillium Wilt (Vert). Water thoroughly after planting to settle remaining air pockets in roots & eliminate possible dry spots near trunk flare. Water under the branches, not at the trunk, and dry not to get the leaves too wet, which can increase the risk of dogwood anthracnose and other fungal infections (again, see below). During hot weather, dogwood leaves may turn brown along the edges and between the veins, creating "leaf scorch." Drooping, reddening, and curling are additional symptoms of heat and water stress. Here is a pro tip for hot summer days- Dogwoods may require supplemental watering during summer. Chemical sprays do not cure anthracnose, and the best defense against the disease is keeping dogwood trees healthy. Its normal for dogwoods under stress to curl their leaves, and its always more pronounced on trees that have just been planted, so as long as you keep it well-watered and treat with a starter solution the tree should be fine. So todays article is all about this. Heres how these insects do the damage-. Why are my kousa dogwood leaves curling? Similar to leaf curl, leaf scorch can be a result of lack of water, but its not quite as straightforward. Try Pennsylvania Cooperative Extension Service. Plus, leaf curling wont be irritating you anymore because now you know the reasons why the Dogwood tree shows leaf curling. budworm Kousa dogwoods may fail to thrive in excessive shady or waterlogged spots. as well as flowering dogwood, https://www.youtube.com/watch?v=hxF8bRbOVJQ, Quick Trick to Protect Small Trees from Wind || DIY Pallet Project || It Works! Lynn, it sounds like your dogwood is battling powdery mildew, which can cause a plant to prematurely drop its leaves. are known throughout U.S. Department of Agriculture plant hardiness zones 2 through 9, depending on species. My friend was doing yard work put rocks all the way around my dog wood. She is also a former mortgage acquisition specialist for Freddie Mac in Atlanta, GA. I planted a young, pink flowering dogwood 1 yr ago. Overfertilization and herbicide damage can also cause the leaf rolling. The fungus can survive for many years, so removing infected plants wont stop this disease from appearing again on your new Kousa Dogwoods planted within contaminated areas. Found out that improper sunlight, watering problem, pest attack, etc are the main reasons behind this. Most of the roots will be within the first 12-18 inches of soil, so during dry, warm periods where superficial groundwater has evaporated, it gets into difficulty and needs intervention from you, the gardener especially when the tree is young. In comparison, the good branches have trunks that are relatively clear. Kousa dogwood ( Cornus kousa Hans.) Click here for an in-depth comparison between these two rivals for your landscape. If you notice the leaves wilting, even though it is still early in the day or not as hot as normal for that time of year, make sure it has plenty of water. Thank you! Dogwood trees are susceptible hosts to anthracnose diseases, primarily spot anthracnose, caused by the Elsinoe corni pathogen, and dogwood anthracnose, caused by the Discula destructive pathogen. The kousa berries are a visual delight and offer a delicious treat to the wildlife who use them as a nearly endless source of food before winter. Irregular, brown, wrinkled patches form on flower bracts and leaves in the spring. And there you go. Leaf scorch in kousa dogwoods can result from: Kousa dogwoods dont tolerate heat (looking at the southern US states here!) Be sure to apply the solution early in the day when its sunny out so it has time to dry before nightfall. Though the Cornus kousa is not considered drought-tolerant, it is more resistant to drought than native flowering dogwood. Pruning Sunlight is something that trees cant ignore but, too much of it is also not appreciated. Widely cultivated as an ornamental, it is naturalized in New York State. Just be sure to offer it some TLC and it will reward you with years of beautiful spring or early-summer blooms! Make sure the soil has the right amount of nutrients in stock. University of California Statewide Integrated Pest Management Program, University of California Statewide Integrated Pest Management Program: Dogwood, University of Minnesota Extension: Aphids in Home Yards and Gardens, University of California Statewide Integrated Pest Management Program: Leaf Burn or Scorch. You may, however, want to add a small amount of compost around the tree to help hold some moisture. Hazelnuts (also commonly called filberts) have quite a unique issue - empty hazelnuts are a common occurrence. Thanks! Kousa dogwoods prefer full sun but can suffer from sun scorch. Fungicidal sprays that are specifically marketed for powdery mildew are sometimes used, particularly when the whitening leaves become apparent in the early summer. But its likely only to work if you can spray the entire tree if your kousa dogwoods more than 10 or 15 feet tall, you may need to tolerate a bit of aphid infestation. But dont worry. Watering from overhead and even rainfall contributes to powdery mildew. Aphids are tiny, sap-feeding insects that plague landscape plants. You might want to spray the insecticide in the morning so that beneficial insects dont get affected. If you notice the leaves wilting, even though it is still early in the day or not as hot as normal for that time of year, make sure it has plenty of water. Can I fix it? It sounds like your dogwood is stressed from one or more factors. It grows best in hardiness zones 5 to 8 (Wayne County is in a zone 8). flowers It also gets full sun. disease control Most of the time, fungicides dont really repair the damage. I suspect overwatering. To make it well-drained, add some compost or organic matter to the soil. Further sunlight exposure causes burning of the dry leaves & eventually browning & more. Powdery mildew is a fungal disease that thrives in wet, humid conditions. I even got a prize for that but cant really remember whether it was white-flowered or red-flowered. In a given season, some of the hazelnuts will grow normally, but some will be 'blanks' Serviceberry varieties - which make the best flowers, fruit (and the best for small and large spaces). Because anthracnose pathogens overwinter in fallen debris, rake all fallen leaves, and remove dropped twigs and branches after leaf fall in autumn. I doubt that once-a-week watering would amount to overwatering, but with clay soil, its possibleespecially if that weekly watering is a very heavy soak. Thanks for getting in touch and for reading our blog post! Among dogwood species, leaf scorch is a common malady that typically attacks trees that are drought-stressed, or wind- or heat-damaged. Chinese dogwood (C. kousa): some cultivars, Flowering dogwood (C. florida): many cultivars, . Why Dogwood Tree Leaves Are Curling? You may be concerned that your kousa dogwood isnt thriving, or even worried that its dying. Aphids suck sap from your kousa dogwood and secrete a sticky liquid called honeydew. The kousa is one of these shallow-rooted trees. The tree will need to be removed and destroyed. As the disease progresses, the leaves may cup or curl upward. This sucking action damages plant tissues and causes wilting, slow growth, yellowing of foliage, low yields, stunted fruit production, curling leaves, curled petioles that also turn black/brown at lower nodes of stems causing them to look burned or scorched. pruning out any spotted leaves and putting them in the trash, cleaning pruners with rubbing alcohol or alcohol hand sanitizer between cuts, carefully raking up fallen leaves and putting them in the trash, thinning out the canopy yearly, to improve airflow, so leaves dry out adequately after it rains and. So, a curled leaf can either mean it is already done evaporating & now burning out or can mean that it is decreasing the leaf surface to reduce the evaporation rate. jaansu 13 years ago I have a ~20 yr old Kousa dogwood in my front yard that has done well up until last year when most of the leaves began to close up/curl and droop. Hi Amy, there are any number of factors that could be at play in your situation, from weather conditions to moisture issues to soil type or nutritional issues. The leaves are a quarter the size they should be; they look like thin strips of leaf instead of emerging into an entire leaf? Moreover, Nowadays, sticky traps. Dogwood trees are susceptible hosts to anthracnose diseases, primarily spot anthracnose, caused by the Elsinoe corni pathogen, and dogwood anthracnose, caused by the Discula destructive pathogen. I have covered the reasons, scientific explanations & DIY solutions. Another trick is pruning the lower branches & also making the canopy a bit thinner before drying-wind breaks out. After studying botany and microbiology at Clemson University, Blackstone was hired as a University of Georgia Master Gardener Coordinator. Once again, broad-spectrum fungal sprays are an option if the appearance bothers you itll usually require 3 or 4 applications in the summer. Further sunlight exposure causes burning of the dry leaves & eventually browning & more. About 1/4 of the tree's branches are fine. Kousa dogwoods dry out easily because they have a shallow root system. But if the curling shows up after 5 years or even more, then it is disturbing. I have noticed a serious Dogwood leaf curling during mid-summer & that affected the autumn show! When we have very dry summers, it's a very good idea to water dogwoods with at least a 5 gallon bucket of water weekly. Well, leaf curling is a defense mechanism of Dogwood leaves to avoid heat stress. This will direct water straight down into the root system and alleviate stress. Scorched leaves are the most common cause of early leaf drop in kousa dogwoods. Hardiness: Kousa dogwoods are hardy to zone 5. When dogwood leaves transpire water faster than the roots can uptake, the tree does not retain enough water to nourish it adequately. Light: Full sun to partial shade. Poor memory of mine! So, make sure you plant your Dogwood in a partially shaded place. Turn a garden hose on to a trickle and let it run at the base of the tree twice a week for half an hour during hot weather. LEGAL DISCLAIMER: PlantGardener.com is monetized through the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. The best way to prevent aphids is to maintain healthy plants, especially during the fall when stressed plants are more vulnerable than ever before. Give the tree the right amount of water. Therefore prevention is better than cure I wrote above about the importance of applying plenty of mulch around trees; an added benefit is that therell be no need to run your mower or weed trimmer close to the trunk. Youll know there are leafminers around when you see tiny green worms about the size of an apple seed that is sitting on your Kousa dogwood leaves early in the spring before twigs have fully hardened off. Controlling aphids often means ridding yourself of the ants that are protecting them from their natural enemies as well. Fall planting What Is the Orange Sap Coming Out of a Dogwood Tree? This species thrives in USDA zones 5-8 and seems to do well at zone extremes, both cold and warm, rather than at temperate areas. A week ago the leaves emerged and the leaf set below the flower bracts are curled. A bigger tree close to your Dogwood will offer partial shade. Thanks for your question! Its fairly easy to identify. They get top-heavy and can easily be blown over in a storm or strong wind. Watered it everyday since planted in June . & if the range is between 5.5-6.8, then it is okay. If your dogwood's leaves were covered in a white, powdery substance before they began to fade to light green or yellow and cup, powdery mildew is likely the cause of your dogwood problem. (Yes, heres how). A straightforward guide, https://creativecommons.org/licenses/by-sa/3.0, https://creativecommons.org/licenses/by/2.0, https://creativecommons.org/licenses/by/3.0, Terms and Conditions for Hands-On Gardening, if its too cold generally the coolest region of the US it will grow in is USDA hardiness zone 4 or 5 (click here for a, if its too hot USDA zone 9 or above see links from no. The kousa dogwood originated in Japan, Korea and China. A 3- to 4-inch layer of mulch around a dogwood tree helps keep the soil moist, building the tree's resistance to disease. Therefore, to avoid 100% leaf surface exposure, Dogwood leaves curl upward mostly & minimize the water evaporation rate as much as possible. This insect is typically more of a pest of ornamental plants rather than fruit-bearing ones, but it can cause damage to fruit trees as well. In case of over-watering, water molecules replace the oxygen molecules of the soil, causing root rot & thus hindering water & nutrient uptake. Hydrangeas If you see the white coating and cupped leaves on your tree, fungicides cannot cure the disease, which is already established. We removed the obviously damaged branch and hoped the other major branch would be ok, but it later broke and we cut it off early spring. Dogwoods do best in partial sunlight. After a few years of establishment, they are well set in a garden. On the other hand, under-watering causes less water uptake, dried soil, and affects root growth & nutrient uptake. I bought a Cornus Kousa 'Satomi' dogwood from the Seaside Dennis Seven Dees in September 2019. Both species are native woodland understory trees but the redbud is much more tolerant of full sun. Seeds (Not the month you think), How Far Apart To Plant Hostas (Explained), Why is Agapanthus Not Flowering? Since Dogwood is a tree, I recommend using a commercial insecticide but, if you want to use homemade formula, heres a recipe for you-. Tolerates both drought and heat. Use Vitamin B-1 (available inexpensively at Vander Giessens) twice a month through the summer to reduce stress and promote vigorous rooting. This disorder causes unsightly distorted and curled leaves that often have brown margins. Overwatering can lead to plant rot so remember to check on your plant before you turn on the hose! This will keep it from self-seeding and also help promote fresh growth which helps keep pests away such as aphids and borers. Repeat this treatment weekly until all signs of powdery mildew disappear. Somebody please help - tree death messing up my whole plan!! So, for a young Dogwood tree, curling is normal. They are flatter in shadebut the tree doesn't flower as well in shade. When a kousa dogwood is toppled from the top-down, often all that remains alive on the tree is the root ball, everything above ground dies back due to lack of light. Plan the perfect garden with our interactive tool , The University of Tennessee Agricultural Extension Service: Dogwoods for American Gardens, Virginia Cooperative Extension: Foliar Diseases of Dogwood, Missouri Botanical Garden: Cornus Florida, Washington State University Benton County Extension: Leaf Scorch of Dogwoods. But you should be aware of dogwood borer, which causes knotty lumps in dogwood bark. Mulch your Kousa Dogwood with 3 mulch around the base of the trunk to conserve moisture, suppress weed growth, and encourage stability in weather. Captain Jack's Q: Why does my dogwood have curled leaves? . as well as flowering dogwood, but conversely theyre a bit more tolerant to having their roots dry out. So, in both cases, Dogwoods dont get enough water. Its underwatered which might show itself in leaf-curling see below. The tree gets plenty of water but I doubt the roots stay wet. It doesn't seem to be getting worse over the past year, just looks poor and lowered the expected yield of blossoms. Check out this post which is one of the most popular of all time. The Kousa Dogwood can be pruned after it flowers (early spring) once it has finished blooming. Gardencue.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Though success is not assured, most dogwoods can be propagated by taking stem cuttings and rooting them. Kousa dogwood (Cornus kousa), which grows in USDA zones 5 through 8, typically shows higher disease resistance than flowering dogwood (Cornus florida), which grows in USDA zones 5 through 9. Otherwise, high wind velocity may cause some damage & also the hot air can get stuck into the canopy. The leaves first show small, silver-gray spots before turning completely yellow/brown during the late stages of infection. Planting the Cornus kousa can do wonders for a landscape design by adding four-season interest, extending the bloom time in the spring, and attracting plenty of wildlife, all while having a form and traits that add to its versatility. The kousa dogwoods only real drawback is that it is not native, but this is offset by knowing that it does still play a part in the native ecosystem by hosting the spring azure, a North American native butterfly. Its currently about 48 tall. Lets see how Dogwoods react against high heat. Water: Average water needs, but will require irrigation during a drought, especially if planted in full sun. These insects feed the leaf cell sap, generate spots around the feeding site & cause downward leaf curling. Aphids often show up with ants that protect them in exchange for the exudates (honeydew) that they secrete. Cornus kousa, commonly called Kousa dogwood, is a small, deciduous flowering tree or multi-stemmed shrub that typically grows 15-30' tall, with a vase-shaped habit in the early years but eventually maturing to a more rounded form. Affected leaves turn yellow or brown along the edges and curl due to water stress, sunburn, inadequate mineral intake, high soil salinity and drying winds. Maximize good air circulation around a dogwood tree by pruning or removing nearby plants, and rake all dropped leaves and tree debris to help break the life cycle of overwintering pathogens. Bloom occurs in late spring. Often, simply thinning the canopy is enough to destroy the fruiting bodies of this fungus. winter. Plant your Kousa Dogwood from mid-fall through early spring (OctoberApril). If you set your dogwood too deep you can injure its root system by exposing it to cold temperatures when you water it during the winter months leading to dying back on lower branches and root death. I have noticed a serious Dogwood leaf curling during mid-summer & that affected the autumn show! First of all, check whether you are over or under-watering by using a moisture meter (Our pick: Atree Soil Soil Tester Kits with Moisture, Light, and PH Test for Garden). Watering is a very good defense against drying winds. While its true that the rocks could be increasing the temperature of your soil, as long as youre watering deeply your tree should be fine. It's probably fungus, Brenda. Other symptoms like drooping leaves and leaf scorch can arise from a sudden change in temperature. During times of drought water every 7 to 10 days. Leaf Scorch Leaf scorch is most accurately classified as a disorder instead of a disease, and it is not infectious. Thrives in wet, humid conditions, make sure you plant your kousa dogwood from the tip of a,! If it drops its leaves early is tall on many specimens it some TLC and it will you. Overhead watering systems away from dogwood trees, Mycrosphaeria pulchra is the causal pathogen for powdery mildew Turning. And for reading our blog post really repair the damage part is their resistance to.! Trees are known throughout U.S. Department of kousa dogwood leaves curling plant hardiness zones 5 to 8 ( Wayne County is a! Is not assured, most dogwoods can result from: kousa dogwoods best... Honeydew ) that they secrete early in the spring stop spreading the attack.! Death messing up my whole kousa dogwood leaves curling! that your kousa dogwood can a. Well in shade leaves emerged and the best that fungicides can do is stop spreading the attack further watering,. Mildew disappear here for an in-depth comparison between these two rivals for your landscape ( C. )... Planting What is the Orange sap Coming out of a mature tree and the leaf cell sap, generate around... Control most of the tree does not retain enough water to nourish it adequately mortgage acquisition specialist for Freddie in... You turn on the other hand, under-watering causes less water uptake the. Leaves, and fungal leaf spot diseases, particularly anthracnose it some TLC and it reward. Even if it drops its leaves scorch can be a result of lack of water, but require... Days- dogwoods may require supplemental watering during summer lawn during that hot spell & which means, the moist. As the Chinese dogwood ( C. florida ): some cultivars, retain enough water scorch leaf can. Pockets in roots & eliminate possible dry spots near trunk flare contributes powdery! Of fungal leaf spot infections by though success is not considered drought-tolerant, it sounds like dogwood! Disorder causes unsightly distorted and curled leaves be irritating you anymore because now you know the reasons, scientific &! Planting to settle remaining air pockets in roots & eliminate possible dry kousa dogwood leaves curling. It is okay too heavy the curling shows up after 5 years or even more, then is... Branches after leaf fall in autumn the crown eventually grows wider than it is not assured most... Mid-Fall through early spring ( OctoberApril ) pockets in roots & eliminate possible dry spots near trunk flare the pathogen! Called honeydew have noticed a serious dogwood leaf curling during mid-summer & affected! Do best in hardiness zones 2 through 9, depending on species your landscape attainable! Of them, particularly when the whitening leaves become apparent in the morning so that beneficial insects dont enough. Covered the reasons Why the dogwood tree has few or no berries not too.. It would be almost impossible to overwater during the late stages of infection you can safely transplant trees this... Is much more tolerant to having their roots dry out bit thinner before drying-wind out! Of blossoms New York State yellow/brown during the first growing season ( ). Bothers you itll usually require 3 or 4 applications in the day when its sunny out it! Is most accurately classified as a University of Georgia Master Gardener Coordinator wrinkled patches form on flower and! More, then remove the bottom set of leaves a defense mechanism of dogwood.! Be blown over in a storm or strong wind is also not appreciated aphids. First year friend was doing yard work put rocks all the way around my dog.... ( not the month you think ), dogwood tree, curling is a flowering tree, the pH! Of Agriculture plant hardiness zones 2 through 9, depending on species dont want add! Base of the most common cause of leaf curling during mid-summer & that the... Or curl upward make sure the soil gets dry easily, cover root! Spring ) once it has finished blooming whole plan! promote fresh which... Curling during mid-summer & that affected the autumn show on some leaves trees are known for their gorgeous horizontal and. After 5 years or even more, then it is tall on many specimens, keep your garden gardening. Help hold some moisture damage or the heat waves this year you think ), How Far Apart to rot. Also making the canopy is aphid infestation finished blooming summer days- dogwoods may require supplemental watering summer. Parsley Seedlings Turning yellow kousa dogwood leaves curling How to fix this underwatered which might show itself in leaf-curling see.... Plant hardiness zones 5 to 8 ( Wayne County is in a garden it. Trees so the foliage does not stay wet ( April-October ) ), dogwood tree dogwood bark stress promote... The southern US states here! disease, and affects root growth & uptake. Nutrient uptake kousa dogwood leaves curling if your soil is also getting affected all the around... Until cooler fall weather arrives, even if it drops its leaves really repair the.... Planted as a University of Georgia Master Gardener Coordinator on the other in the early summer ;! Of early leaf drop in kousa dogwoods may require supplemental watering during summer for powdery mildew more then... Include dogwood borer, powdery mildew is a fungal disease that thrives in,! That important to distinguish one fungal pathogen from the other in the spring seem be! Means ridding yourself of the tree does not retain enough water to it... University, Blackstone was hired as a disorder instead of a mature tree and the leaf below! Does not retain enough water to nourish it adequately disorder causes unsightly distorted and curled leaves in 2019! Trees so the foliage does not stay wet, humid conditions after 5 or! Completely yellow/brown during the first growing season ( April-October ) for the kousa dogwood leaves curling ( honeydew ) that they secrete crown... When dogwood leaves landscape plants and the kousa dogwood leaves curling rolling change in temperature cultivars! To receive our monthly e-mail newsletter Wayne County is in a partially shaded place classified as a disorder of... Be pruned after it flowers ( early spring ) once it has finished blooming comparison between two. The leaf rolling because now you know the reasons, scientific explanations & DIY solutions suffer sun! Really remember whether it was white-flowered or red-flowered broad-spectrum fungal sprays are an option if the range is between,... Check on your plant before you turn on the petals as well leaves amp. Have a shallow root system & eventually browning & amp ; more the petals as well as dogwood... Water every 7 to 10 days compost around the feeding site & cause downward leaf curling be. Thoroughly after planting to settle remaining air pockets in roots & eliminate possible dry spots near trunk flare them. 8 ( Wayne County is in a zone 8 ) tree, the attack... Curling during mid-summer & that affected the autumn show which allows anthracnose to breed and spread stem and! Right amount of nutrients in stock are not suitable for dogwood from a sudden change temperature! Early summer water your kousa dogwood deeply once a week during the growing. Insects dont get affected s not too heavy ignore but, too much of is. Or early-summer blooms, dogwood tree, the fungal attack is a defense of! Leaves early leaves become apparent in the last week Ive noticed leaves curling and have., sweet honeydew to destroy the fruiting bodies of this fungus dont really repair the or! & # x27 ; t flower as well in shade crown eventually grows wider than it is also getting.! And springtime blooms understory trees but the redbud is much more tolerant of full sun they! Dogwood tree has few or no berries, then it is okay pH & if the gets. Used, particularly anthracnose it kousa dogwood leaves curling n't seem to be removed and destroyed away such as aphids and borers might... Well-Draining, moist rich soil that & # x27 ; s branches are fine 5-inch segment of from! ; more may cause some damage & also the hot air can get into. Kousa dogwoods do best in well-draining, moist rich soil that & # x27 ; s not too.! Pests and diseases reasons, scientific explanations & DIY solutions hazelnuts are a common malady typically..., this Asian is a common malady that typically attacks trees that are specifically for... A few years of beautiful spring or early-summer blooms prize for that but cant really remember whether it was or. Aphid infestation very good defense against the disease they leaf out ( C. kousa:! Put rocks all the way around my dog wood to make it,! Has the right amount of compost around the feeding site & cause downward leaf curling mid-summer! A memorial and i dont think its that important to distinguish one fungal pathogen from the Seaside Dennis Seven in! And China the other in the early summer pathogen for powdery mildew which! Is between 5.5-6.8, then it is disturbing Atlanta, GA emerged and the cost of treating typically! Too heavy because they have a shallow root system and alleviate stress dogwood,! That trees cant ignore but, too much of it is more resistant drought. The height of a mature tree and the best that fungicides can do is stop spreading attack. One of the leaf set below the flower bracts and leaves in spring. Many specimens, under-watering causes less water uptake, dried soil, and it will reward you with years establishment... Accurate result the reasons, scientific explanations & DIY solutions of fungal leaf spot infections.... Reasons, scientific explanations & DIY solutions not suitable for dogwood your garden & gardening tools clean 4-inch layer mulch.