Native Plants
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Smarty Plants Question Topics
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
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| Problems with Monterrey Oak in Austin March 26, 2013 We had a local tree service plant two Monterrey Oak trees on 4/2/2012. At the time we noticed that woodpeckers had had a field day on the trunk bark of both trees with the most damage being on the lar... View Mr. Smarty Plants' Answer |  | |
| Allelopathy of American elms from Dallas March 24, 2013 Are American elms at all allelopathic? View Mr. Smarty Plants' Answer |  | |
| Long term effects of pesticide from Lubbock TX March 20, 2013 I have 9 western pecan trees about 20 years old. Trunk sizes is from 18" to 39". I used a product Bayer Tree and Shrub, applied to the trees. I wonder what it will do to the trees. I talkd to Bayer ... View Mr. Smarty Plants' Answer | ||
| Black Sooty Mold on Bay Tree February 25, 2013 I have a large bay tree and all the leaves are covered with a black mold-like substance on the top part of the leaf. Under each leaf are some black/brown spots. I have washed the leaves with soap and ... View Mr. Smarty Plants' Answer | ||
| Bugbane Leaf Blotch January 24, 2013 My bugbanes (Cimicifuga/Actaea) seem to suffer from black blotches on the leaves in the summer. This happens even when they have adequate moisture. I also see it on the ones growing wild. Is this a fu... View Mr. Smarty Plants' Answer |  | |
| What to do about volunteer trees growing beneath a large live oak tree in Austin, TX January 08, 2013 We have a large live oak tree. Several volunteer trees are growing directly underneath it and into its branches. I want to cut them down if they are going to hurt the long term health of the live oak.... View Mr. Smarty Plants' Answer |  | |
| Problems with crossvine from Semmes AL January 06, 2013 I have a 3 year old cross vine (tangerine beauty) and the leaves have started turning black and falling off the plant. I have two plants growing on the same pergola (opposite ends) and the second plan... View Mr. Smarty Plants' Answer |  | |
| Prickly pear doing poorly on Long Island NY December 27, 2012 First, thanks for your reply on 11-3-12, re.Can a prickly pear cutting from Harker Heights, TX find happiness in Long Island, NY. The plants were set before a southern window in the attic, temp. ra... View Mr. Smarty Plants' Answer | ||
| 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 Mr. Smarty Plants' Answer |  | |
| Mountain Laurel slowly dying in San Antonio, TX December 26, 2012 My Texas Mountain Laurel seems to be dying in a slow unusual manner. Over the past two weeks the leaves have been turning yellow and falling off starting with the south facing side of my multi-tru... View Mr. Smarty Plants' Answer |  | |
| Will damage to live oak root make it more susceptible to oak wilt December 24, 2012 Hi. I knicked the root of a live oak when digging. Will this hurt the tree and make it more succeptible to wilt? Is there something I can use to protect the exposed part of the root and make it les... View Mr. Smarty Plants' Answer | ||
| Agarita and Mexican Buckeye not flowering or fruiting. December 11, 2012 The Greenbelt behind our home has a ton of agarita and Mexican buckeye, but they never bloom or berry. The pigeon berry is very happily doing both all year. Any suggestions for helping the agerita a... View Mr. Smarty Plants' Answer | ||
| Non-native Chamaecyparis pisiflora turning brown in Fuqua-Varina NC December 10, 2012 I have a "Soft Serve False Cypress" Chamaecyparis pisifera'Dow Whiting PPAF, that has only been in the ground for 6-7 months. I just noticed that the branches and leaves are starting to die, turni... View Mr. Smarty Plants' Answer | ||
| Problems with mature Blue Agave in Kenya December 09, 2012 I have a mature Agave plant and there is a thin black liquid that looks like oil starting to appear on the leaves. The plant plant seems to be dying (from the bottom up). (The plant is a blue Agave an... View Mr. Smarty Plants' Answer | ||
| Fasciation on Texas Mountain Laurel November 21, 2012 Do Texas Mountain Laurel normally have a staghorn looking growth hanging on them after blooming in addition to the seed pod clusters or could this be a mutation? View Mr. Smarty Plants' Answer |  | |
| Newly planted nuttall oaks from Houston TX November 16, 2012 I recently purchased two Nuttall Oak Trees in Houston Texas (October). They are both 15' or taller. I planted them within 24 hours of being delivered, watered them in, staked them, and within 3-4 d... View Mr. Smarty Plants' Answer |  | |
| Chlorosis in Texas Wisteria from Blanco TX November 05, 2012 Just noticed a Texas Wisteria I bought last month and it is already looking chlorotic. Mixed compost in w/the dirt it is planted in but I don't think that will be enough. Is Blanco soil too alkaline?... View Mr. Smarty Plants' Answer |  | |
| Cupressaceae dying in Suffolk Co.NY October 20, 2012 I have noticed that all of my Cupressaceae (& others I see in my area) are dying. They turn yellow, then rust & brown til they are everbrowns. what is going on? View Mr. Smarty Plants' Answer | ||
| Spots on non-native naval orange trees from Stockton CA October 20, 2012 I have two mature Navel Orange trees. One tree has developed spotty chlorophyl depleted areas that were not on the oranges when they were smaller. In addition, the oranges on both trees are smaller ,... View Mr. Smarty Plants' Answer | ||
| Problems with recently planted trumpet vine from Worcester MA October 20, 2012 Dear Mr. Smarty Plants, I have a question about my recently planted Trumpet Vines. First of all, I live in Massachusetts, zone 6. The soil is perfect for the two vines, which I bought from a local nur... View Mr. Smarty Plants' Answer |  | |
| Drought-resistant and grub-resistant grass for Smithville TX October 02, 2012 I want a drought resistant grass for a sunny area that is also resistant to grubs. I have lots of grubs but want a healthy soil of good microbes. Any ideas? Zoysia, Buffalo? I noticed that Tech Turf r... View Mr. Smarty Plants' Answer | ||
| Film growing on prickly pear from Austin September 28, 2012 We've just xeriscaped our front & back yards. Two of the spineless prickly pear cacti have a beige film growing on the paddles. The film is now moving further up the cactus, and one of the upper pad... View Mr. Smarty Plants' Answer |  | |
| Failing to thrive of non-native rose bushes in Austin September 24, 2012 I live in NW Austin and I have lost one knockout rose bush this summer and it looks like another one is failing. The leaves on a cane turn yellow then brown. I do not see whiteflies or black spots o... View Mr. Smarty Plants' Answer | ||
| Controlling nematodes on lantana from San Antonio September 19, 2012 Can anything be done to "fix" root knot nematode on older lantana. Next to other lantana. Pull them out or try organic fix? View Mr. Smarty Plants' Answer | ||
| Problems with mature cottonwood in Justin TX September 17, 2012 I have a very large, 90" circumference, approx 60' tall, cottonwood tree in my front yard that appears to be sick. The trunk splits at about the 4' level into 2 parts. at that split is a 10" wide... View Mr. Smarty Plants' Answer |  | |
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