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- Q.Sumach Tree - Can anyone tell me if this tree is the poisonous one.thanks.
- Q.Name Of Plant Or Shrub - Hello, I took this pic of a flowering shrub. Can you tell me the name of it? Thank you.
- Q.2 Tiger Eye Staghorn Sumac Wilting - I've got 2 sumac bushes growing in large insulated containers on a roof terrace. 3 years old, zone 5 Wisconsin. ...
- Q.My Large Sumac Looks Like It’s Diseased Leaves Are Turing Bllackish While All Its Shoots Are Healthy Also Shoots On A Primed Ar - ea started out healthy but now are turning black This happened in early June then looked like it was starting ...
- Q.African Sumac Looks Like It’s Dying - My African Sumac looks like it’s dying after seeding. I have three all planted in the same soil with the ...
- Q.Plants Tolerant To Allelopathic Properties Of Tree Of Heaven - What plants will grow well near a tree of heaven? I'm particularly interested in ground cover, fruit and veg, and ...
- Q.My Brother Bought Some Acres Of Rural Fields That Are Covered With Wild Sumac. What Is The Easiest Way To Clear Out The Sumac. - The field of sumac is in northeast Alabama.
Asked by
Susan Morrison on
July 6, 2020
GU34 1DZQ.Sumach Tree
Can anyone tell me if this tree is the poisonous one.thanks.
Answered by
BushDoctor on
July 6, 2020
Certified ExpertA.Rhus and Toxicodendron a fairly easy to tell apart. This specimen is far too diseased to know, exactly, but the stems are too "tree-like" to be Toxicodendron (Poison Sumac) Generally, ornamental Sumac trees will have very slender leaves, while Poison sumac will have fuzzy and slightly irregularly shaped leaves that are wider.
Toxicodendron Sumac will grow as a small shrub, and usually prefer shade. Any tree labeled as "Sumac" will be Rhus, since there isn't a single nursery that would sell Toxicodendron. If you have purchased this tree, or it was planted on purpose, then it is likely just an ornamental Sumac tree.
https://www.gardeningknowhow.com/plant-problems/weeds/poison-sumac-control.htm
https://www.gardeningknowhow.com/ornamental/trees/sumac/sumac-tree-info.htm
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- Asked by
Anonymous on
July 21, 2020Q.Name of plant or shrub
Hello, I took this pic of a flowering shrub. Can you tell me the name of it? Thank you.
- Answered by
GKH_Susan on
July 22, 2020
Certified ExpertA.It's a sumac tree, but there are too many varieties to pin it down. Ask at your local nursery about the different types they carry.
https://www.gardeningknowhow.com/ornamental/trees/sumac/sumac-tree-info.htm
Was this answer useful?00 - Asked by
MHOMECOLLECTIONS on
August 7, 2020
Milwaukee wi 53202Q.2 Tiger Eye Staghorn Sumac Wilting
I've got 2 sumac bushes growing in large insulated containers on a roof terrace. 3 years old, zone 5 Wisconsin. All good until a month ago. The southern bush has leaves that are drying and curling...see first 2 images. The northern Bush is really wilting...see last 2 images. These are on a regular watering system. Not sure what gone wrong. Thank you
- Answered by
BushDoctor on
August 7, 2020
Certified ExpertA.This looks to be, either, overwatering or overfeeding related.
Using a fungicide will be a good idea. This article will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
I would make sure that the soil dries out, thoroughly, down to about 3 or 4 inches between receiving water. If there is any moisture down to this depth, I would hold off on watering.
Here is an article that will help you to test soil moisture:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
This article will help you to care for the shrubs:
https://www.gardeningknowhow.com/ornamental/trees/sumac/sumac-tree-info.htm
Was this answer useful?00 - Answered by
MHOMECOLLECTIONS@GMAIL.COM on
August 8, 2020A.Thank you so much for your response and the related articles. Very much appreciated!
Was this answer useful?00 - Asked by
Anonymous on
July 17, 2021Q.My Large Sumac Looks Like It’s Diseased Leaves Are Turing Bllackish While All Its Shoots Are Healthy Also Shoots On A Primed Ar
ea started out healthy but now are turning black This happened in early June then looked like it was starting to get back to normal but has since started looking as if it’s dying
- Answered by
BushDoctor on
August 4, 2021
Certified ExpertA.This sounds like an infection. Unfortunately, your photos did not come through. I am unable to assess the damage. You can make an attempt at treating the area. This article will help:
https://www.gardeningknowhow.com/garden-how-to/info/what-is-copper-fungicide.htm
Here is an article that will help you with the care of the tree:
https://www.gardeningknowhow.com/ornamental/trees/sumac/sumac-tree-info.htm
Was this answer useful?00 - Asked by
Anonymous on
August 21, 2021Q.African Sumac Looks Like It’s Dying
My African Sumac looks like it’s dying after seeding. I have three all planted in the same soil with the same drainage and water schedule. The other two are fine. Any suggestions?
- Answered by
BushDoctor on
September 2, 2021
Certified ExpertA.Unfortunately, this looks like the start of Cotton Root Rot. Sadly, this tree species is very susceptible to the disease. Unfortunately, the only way to avoid the issue is to plant trees that are resistant.
This article will help:
https://www.gardeningknowhow.com/plant-problems/disease/cotton-root-rot-in-plants.htm
Was this answer useful?00 - Asked by
Anonymous on
September 17, 2021Q.Plants Tolerant To Allelopathic Properties Of Tree Of Heaven
What plants will grow well near a tree of heaven? I'm particularly interested in ground cover, fruit and veg, and small to medium flowering perennials
- Answered by
GKH_Susan on
September 29, 2021
Certified ExpertA.Tree of Heaven has many unpleasant qualities you may not be aware of, and it is considered invasive and a detriment to native species. I would suggest removing it before it is too late. Here is more:
https://extension.psu.edu/tree-of-heaven
https://www.gardeningknowhow.com/plant-problems/weeds/tree-of-heaven-weed-control.htm
https://www.rhs.org.uk/advice/profile?pid=530Was this answer useful?00 - Asked by
Anonymous on
January 19, 2022Q.My Brother Bought Some Acres Of Rural Fields That Are Covered With Wild Sumac. What Is The Easiest Way To Clear Out The Sumac.
The field of sumac is in northeast Alabama.
- Answered by
GKH_Susan on
January 20, 2022
Certified ExpertA.Sumac references often discuss its importance to wildlife rather than control. I did find one university extension publication on how to control smooth sumac. It probably would work for staghorn sumac as well. References also recommend consulting your local extension office for the best control in your area. I have included links to these resources.
https://www.frontierdistrict.k-state.edu/livestock/docs/Control%20options%20for%20buckbrush.pdf
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