Native Plants
Q. Who is Mr. Smarty Plants?
A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
rate this answer
Thursday - October 18, 2007
From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders
Title: Flameleaf sumac problems
Answered by: Barbara Medford
QUESTION:
I have three flameleaf sumacs, which were planted last December. One is doing very well, but two are losing their leaves. First, black spots appear on the leaves, then the leaves turn yellow and wilt, and then they turn black and fall off. Can you offer any suggestions?ANSWER:
Rhus copallinum (winged sumac), also called flameleaf sumac, is considered a drought and pest resistant native shrub, excellent for this area. However, we had a very strange summer, with a lot of cool weather and moisture for two months and then summer came back with a vengeance and doesn't seem planning to leave. Mr. Smarty Plants was asked a similar question about a relative of the Flameleaf sumac, Rhus virens (Evergreen sumac) and you can follow this link to our answer. As we noted in that answer, it could be that the plants in your garden need some trimming for more air, and checking their drainage to make sure they are not standing in soggy soil. Because it is a native, the sumac usually gets along very well in this part of the country. Another consideration is that the Rhus copallinum (winged sumac) is deciduous as opposed to the Evergreen sumac, which is not. Perhaps partly because of the weather this year, your sumacs may have chosen to drop their leaves a little early. Hopefully, time, patience, normal (for Texas) weather, and perhaps a little attention to drainage around the roots of your plants will get everything back to what you expected from your plants.
More Diseases and Disorders Questions
Problems with non-native Japanese privet from Glendale AZ
December 26, 2012 - We have Japanese privet shrub and they seem to be suffering from a disease, need help.
view the full question and answer
Powdery mildew hits Rock Rose in Round Rock Texas
May 05, 2011 - My beautiful Rock Roses have gotten spots of white fuzzy "fur" on their leaves in the past month. This is not something they have ever had before and I'm worried its some kind of disease. Is it so...
view the full question and answer
Plant mistakes from Cedar Park, TX
April 09, 2014 - At our "Wilts End" in Cedar Park, TX. and are looking for a tall shrub/tree that will hide a 6-ft tall concrete wall and muffle the noise from a busy street. The wall forms a very wide-angled V shap...
view the full question and answer
Problems with Green Cloud purple sage in Buda TX
May 30, 2009 - I planted the "Green Cloud" variety of purple sage about 3 years ago. Yesterday, I noticed yellowish dots on the underside of the leaves of some plants. Is this harmful? The plants seem to be ok ...
view the full question and answer
Salvia farinacea and rust fungus from Kerrville TX
February 22, 2014 - Are Henry Duelberg salvias (Salvia farinacea)susceptible to rust fungus?
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |