UACES Facebook Dogwood

Dogwood

November 26, 2016

QuestionCould you please shed some light into what type of dogwood tree I have that produces this fruit? Are they edible?

 

Picture of the Kousa dogwood fruit

Answer

The fruit you have is from the Kousa dogwood—Cornus kousa. In a mild growing season they can become quite large and showy--much showier than the berries on our native dogwood.  The fruits are edible, but I have never eaten them so cannot describe the taste.


 

 

October 2016

 QuestionMy neighbors Dogwood tree has almost died this summer and mine has a number of dead limbs.  Should I cut them out now? If so should they be painted with pruning paint?

 

AnswerIf you are sure the limbs are dead and haven't just defoliated early, then go ahead and prune out the dead wood.  You should not use a pruning paint or wound dressing--the key is a nice clean cut.  Prune them out at the branch collar--not flush with the trunk of the tree, but not leaving a stub either.  Dogwood trees don't handle stress well.  Whether it is wounding from a lawnmower or weed-eater, drought stress, storm damage or ice damage, once they begin to decline, it can be difficult to reverse the trend.  Take a close look at the tree next spring when the tree leafs out.  Make sure you keep the tree watered, as dogwoods are very shallow rooted.  If you are fertilizing your lawn area, you are also getting fertilizer to the tree. 


 

September 2016

Question

I have several young dogwood trees in my yard.  I noticed that all of my neighbor’s trees are beginning to set berries, while mine has none.  How can I encourage berries now, so I will have blooms in the spring?  

Dogwood Berries

 AnswerBerries are a by-product of flowers, not a precursor to them.  Young trees which had no blooms this past spring will have no berries this fall.  You can see emerging flower buds at the tip of the branches.  The leaf buds are small and pointy, while the flower buds are rounded and come to a center point.   There is little that can be done now to encourage flowers for next year.  Most flower buds are already set.  Young trees usually go through rapid vegetative growth, with flowers coming on after the tree slows down with age.    


 June 18, 2016

Question

We have a dogwood tree in our front yard for 16 years and it has hardly grown at all and has very few blooms. Do we need to move it or trim it or what do we do? There are two large trees around it and it doesn't get a lot of sun. But the dogwoods in the forest don't get much sun either and they bloom.

 

Answer

If the tree isn’t growing much, I would say something is impeding the roots from growing well.  Dogwoods are understory trees which need filtered sunlight or morning sun and afternoon shade to bloom well.  They will not bloom in deep shade, but they should still grow.  Is the soil extremely rocky?   If you think it needs to be moved the time to do it so would be in the fall.  


April 1, 2016

QuestionWe have a sun room with windows that reach from 1 foot above the floor to 1 foot below the ceiling. Just outside the room about 8 to 10 feet away is a bed of 4 dogwoods that are about 20 feet tall.  The bottom half of the trees have no limbs and therefore no blossoms that are visible. The upper parts of the trees have zillions of blossoms that we cannot see from our room. I water the trees religiously during the dry periods.  Is it possible to trim the dogwood trees back to about 10 feet tall and make them develop branches and blossoms low enough for us to see from our
windows?  If so, when in the year should we trim them, at what point on a branch should we trim them? Is there anything else we should know or do?

AnswerAnything is possible, but is it healthy for the tree to be pruned that severely? We normally don’t like to prune more than 1/3 of the plant at one time.  Pruning that severely would not be a once only process.  Eventually the trees will grow tall again, and you will have to continually prune.  What about planting some lower growing blooming plants as understory plants to add to your color, or selectively prune a few branches to get some lower limbs.  Shearing all of them to ten feet would seem a bit unnatural to me.  Any pruning should be done immediately after bloom in the spring.  


 November 28, 2015

QuestionI had two trees removed from my back yard early last summer; a Bradford Pear (Fire Blight) and a Maple (Slime Flux?)  Now I'm looking for replacement trees. I really don't need shade as this is in the East yard, therefore, I would prefer something not to exceed 20 - 25 feet tall.  I'm leaning towards a holly but will consider other evergreens. The soil I'm dealing with is heavy orange clay.  In fact the Maple I removed had a lot of surface roots. Thank you for any suggestions? 

Answer

The maple would have probably had surface roots even in decent soil—that is the nature of maples.  I am assuming you want something evergreen.  Some options include:  Little Gem magnolia, Foster holly, Burford holly, deodara cedar, cherry laurel or one of the larger junipers.  If it doesn’t have to be evergreen, I love the sweetbay magnolia or even one of the tulip magnolia trees, redbuds or dogwoods.


 (December 2012)

Question I have a tree that I planted as a dogwood this March, and in spite of continued watering it had withered leaves all summer. I had given it up for dead but now it has sprouted all these red berries - wasn't aware that dogwoods produced berries. Does it look dead to you?

AnswerIt is definitely a dogwood, and the red berries are the fruits that came from the flowers it bore this spring. The plant is definitely scorched, which could be from stress because it was newly planted and we had a horrid summer, but it also could be sunburn if it was planted in direct sunlight. Dogwoods do best in filtered sunlight or afternoon shade. The tree is not dead, but it isn’t happy. I see new leaf buds already set for next spring. For now, just be patient and see how well it leafs out next spring. If you think it is in the wrong location, you could transplant it now.


(October 2011)

Question I live in Cabot and my house gets full sun the entire day. I went to a tree giveaway and got a little fir tree, a red oak and a dogwood. Would any of those be good for backyard plants? Will the dogwood do well in full sun? All of them are very young trees! I am thinking of putting a red maple in the back yard with loropetalum and azaleas to hide the cable box. I have never lived in Arkansas and don't know your trees.

AnswerWelcome to Arkansas. Dogwoods would not do well in full sun all day—they would sunburn every summer. They are best in full morning sun or filtered sun. The oak tree is a wonderful shade tree and by fir, I am assuming you have a bald cypress maybe? It too will make a large shade tree. Red maples are great mid-sized trees. If you want one with guaranteed fall color, choose one now with color or go with a named cultivar.


(November 2011)

Question Recently, we purchased a home with a dogwood tree that we would like to transplant to another area in the yard. It looks to be about 5 years old. When would be the best time to transplant this tree?

AnswerActually, the transplant season has just begun. From November through February is the ideal time to move existing hardy plants. The plants are going dormant and they can spend the winter months reestablishing their root system to prepare for the growing season. Try to have the new site ready before you dig up the tree, and protect the roots during the move—don’t leave them exposed to cold temperatures for too long. Plant it at the same depth it is currently growing, or slightly shallower. Water and mulch will be all that is needed until growth begins in the spring.

 

Question The Conservation District in our county in their "Beautification Tree Project" offered a choice of thirteen ornamental trees for sale. Some were native, others included some alien invasive species, such as Cleveland Pear and the Mimosa tree. What is the effect of adding these trees to our landscape and neighborhoods? As good stewards what should be recommended or omitted from planting in our communities?

AnswerIn looking at the plant list I have to commend them for making some great trees available at really good prices. Two named cultivars of red maple, the native fringe tree, dogwood and tulip poplar, in addition to yellowwood, smoke tree, redbud and golden raintree are great trees. It looks like they are going for trees that have some form of color, whether from flowers or from fall foliage. The Cleveland pear fits the bill, but is not high on my list of favorites. It is a smaller adult form of the ornamental pear which we collectively often call Bradford, but it still can fruit and become invasive. We have seedling callery pears coming up all over our state. The mimosa, however, I do consider a trash tree. Many folks like them, but they often suffer from mimosa wilt and send up seedlings, so not a good choice.(


(December 2011)

Question I have a 25 year old dogwood tree that is blooming now. I noticed a couple full sized blooms last Saturday. Sunday I noticed one additional branch full of smaller blooms. How unusual is this? The dry hot summer has stressed the tree, which has about half its leaves withered and brown. I had never pruned the tree, until July of this year, when I remove quite a few of the lower limbs to allow sunlight to shrubs and various plants under the dogwood. I painted the wounds where I cut off the branches.

AnswerYou are not alone--many spring bloomers have had some errant blooms this fall. My loropetalum shrub is in full bloom right now! Many of our plants set their flower buds early and shut down early to deal with our horrendous summer. Then we finally got some rain, it turned cool, heated up again and they thought spring had arrived. There is nothing you can do but enjoy the blooms. Assess the damage next spring to your tree from the summer heat and prune as needed after they finish blooming next spring. Tree paints for pruning cuts are not needed--a nice clean cut is all you want.


(Oct. 2010)

Question I have never heard of this, but my young dogwood (about 3 years old) is getting ready to bloom! Is it normal for a dogwood to bloom in October?

AnswerFlower buds should be set—dogwoods often set them as early as late July some years, but blooming is another story. Are they just full of buds or actually showing flower color?


(August 2010)

Question We live in Bella Vista and have several large black walnut trees on our property. We have tried a crape myrtle and a red tip but both died. What is it about the black walnut trees that cause shrubs and bushes to die? Can you recommend any thing that will grow when planted 16 to 20 feet from a walnut tree?

AnswerBlack walnuts produce a chemical called juglone, which occurs in all parts of the tree, especially in the buds, nut hulls, and roots. The leaves contain smaller quantities and can leach juglone into the soil if they are left on the ground after falling. Many plants are adversely affected by the juglone, but it is more typical of plants within the drip line of the tree. For small flowering trees that are not affected try dogwood, redbud, fringe tree or serviceberry. Shrubs include forsythia, viburnums, altheas and sumacs. Try to plant things that are adversely affected at least 40 feet away and don't use the leaves as mulch. If you can create a raised bed that can also help.


(April 2008)

Question Last July we had three large (8-ft.) healthy dogwoods planted in our yard. This spring two of them bloomed beautifully. However, the third had no blooms, but is leafing out. What should I expect from this tree in the future?

AnswerJust like with the earlier azalea question, many plants will not bloom perfectly their first year after planting. With dogwoods, age can also be a factor in blooming. Some dogwoods will stay growing in a juvenile stage longer, putting on more growth during the season, before they slow down and begin to bloom. Once they begin flowering, you should have blooms annually provided the shade factor doesn’t increase. Like the azaleas, dogwoods are considered under-story plants. They like filtered sunlight or direct morning light, with protection from the hot afternoon sun. While they bloom well with direct afternoon sunlight exposure, the foliage often suffers from sunburn in late summer, and they definitely need more water. In heavy shade, they won’t bloom well if at all.


(July 2008)

Question I have a white dogwood tree with yellow leaves falling from it. Some of the leaves seem to have black spots and the tree looks a bit wilted. Do I need to be concerned?

AnswerI would take a sample of the diseased materials to your local county extension office. This season we have been seeing signs of the dogwood anthracnose (Discula destructive) that is more dangerous than the small spotted form of dogwood anthracnose (Elsinoe corni) which we have had for years. Symptoms of D.destructive begin in the lower crown and progress up the tree. Leaf lesions start as tan spots with purple rims, but can rapidly enlarge to large leaf blotches. If you do have this anthracnose, fungicide sprays would be warranted for control, along with pruning. Here is a link to a newsletter from our plant disease clinic with more information on the disease complete with pictures: http://www.aragriculture.org/News/plant_clinic/2008/ten2008.pdf


(October 2007)

QuestionMy neighbors Dogwood tree has almost died. Mine has a number of dead limbs. Should I cut them out? If so should they be painted with pruning paint?

AnswerIf you are sure the limbs are dead and haven't just defoliated early, then go ahead and prune out the dead wood. You should not use a pruning paint or wound dressing--the key is a nice clean cut. Prune them out at the branch collar--not flush with the trunk of the tree, but not leaving a stub either. Dogwood trees don't handle stress well. Whether it is wounding from a lawnmower or weed-eater, drought stress, storm damage or ice damage, once they begin to decline, it can be difficult to reverse the trend. Take a close look at the tree next spring when the tree leafs out. Make sure you keep the tree watered, as dogwoods are very shallow rooted. If you are fertilizing your lawn area, you are also getting fertilizer to the tree.


(July 2007)

Question I have a white dogwood tree that is about three years old. It has not grown much and never flowered. This year the new leaves are starting to curl and have a white substance on them. It is getting plenty of water, in fact, maybe too much with the rain that we are having. It is planted in the shade of two giant oak trees. Is this something I need to worry about...what do I need to do to stop whatever this is and how do I prevent this problem in the future?

AnswerYour tree is too young to bloom, so simply give it time for that. The curling leaves and white substance are caused by powdery mildew, a common fungal disease. Overhead watering (i.e. rainfall too,) coupled with high humidity is the culprit. When you water, try to keep the foliage dry, or at least water early enough in the day that moisture doesn't remain on the foliage overnight. There are fungicides that can help, but it is difficult to get a handle on once it starts for that season. If the tree is in heavy shade, it may never bloom, and that can also reduce air circulation making the powdery mildew worse. This has also proven to be a good year for powdery mildew on a variety of plants. Sprays will give limited help this year. If the problem becomes an annual one, then preventative sprays would be called for. For more information on powdery mildew get a copy of our fact sheet 6113, which you can read on line at www.uaex.edu or get a copy from your local county extension office.


(April 2006)

Question I have a pink dogwood that I planted in the winter of 2004. It only had two blossoms on it last year, and this year it doesn't have any! I have talked to others who have had similar problems. My tree is in full sun, but it gets a lot of water. It seems very healthy, but just no flowers. Any ideas?

AnswerIt is not unusual for a young dogwood not to bloom. The blooms you had last year were on the plant when you bought it in the winter of 2004. Dogwoods set their flower buds in the late summer or fall of the previous season. They often bloom while in containers because they are root bound and not able to put on much top growth. Once they are free to grow, they spend their formative years growing, and once they mature, they slow down and begin to bloom. Just be patient, and you will have a blooming plant before too many years go by.


(April 2005)

QuestionWe live in the forest and have several dogwood trees on our property as well as a number in the woods surrounding our home. Some bloom profusely one year and the next year have few if any blooms. Some are in full sun and others are located in shady areas. Location does not seem to have an effect on the number of flowers each tree has. Is there anything that we can do to help them bloom?

AnswerDogwoods set their flower buds in late summer. Sometimes it can take five to seven years before they mature enough to begin blooming. Once they begin, they should bloom annually. The amount of blooms can vary based on the amount of sunlight they receive and the weather conditions. If it is particularly hot and dry at the end of the summer, and they are not getting supplemental water, they may not set as many flower buds. If they are plagued with the disease powdery mildew, that can also affect the number of flower buds they set. In my opinion the ideal conditions for dogwoods are morning sun and afternoon shade, a well drained soil supplemented with organic matter. They need regular water when it is dry. They will grow well in the shade, but will not bloom in deep shade.


(January 06)

QuestionIf things go as planned we will be moving into a new home in a couple of months. We want a couple of trees in front of the house. Would maple or dogwood be ok and if so is there a particular kind ? We will have close to 100 ft. across the lot. It is in the Hot Springs area.

AnswerDogwoods would be a good choice only as an understory plant. They need a bit of protection from the hottest afternoon sun. You may want to get some shade trees established. Red maples are great trees, but do be aware that they can have surface roots. To be guaranteed the red fall color, look for a named cultivar such as 'October Glory' or 'Red Sunset'. Some other good shade trees that are tough and durable are Little Leaf Linden--Tilia cordata, Lacebark Elm--Ulmus parvifolia and blackgum- Nyssa sylvatica.


All links to external sites open in a new window. You may return to the University of Arkansas Division of Agriculture web site by closing this window when you are finished. We do not guarantee the accuracy of the information, or the accessibility for people with disabilities listed at any external site.

Links to commercial sites are provided for information and convenience only. Inclusion of sites does not imply University of Arkansas Division of Agriculture's approval of their product or service to the exclusion of others that may be similar, nor does it guarantee or warrant the standard of the products or service offered.

The mention of any commercial product in this web site does not imply its endorsement by the University of Arkansas Division of Agriculture over other products not named, nor does the omission imply that they are not satisfactory.