Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
Krum, TX
Identification of red and black insects on Yucca
I have little red and black insects on my soft leaf yucca and I don't know what they are or how to get rid of them. They make the leaves rusty looking. Do you have any idea what they are or how I can...
view the full question and answer
Krum, TX
Planting a Texas Persimmon in rocky soil in Krum TX
I have recently purchased a 10 gallon Texas Persimmon plant that I want to put as a highlight plant in my yard. According to the nursery, it has been in the pot for 2 years. I have been "blessed(or...
view the full question and answer
Ponder, TX
Pipevine (Aristolochia sp.) found in Denton County Texas
I am almost positive that I have numerous pipevine swallowtail in my garden in Denton County, TX. I read that the host plant for the larva is almost exclusively pipevine. Would any kind of pipevine be...
view the full question and answer
Ponder, TX
Does goldenball leadtree (Leucaena retusa) have thorns?
I have a plant that I am told is a native Texas plant, but the person I got it from could not remember its name. They said it was very hardy and drought tolerant. It looks a little like goldenball lea...
view the full question and answer
Ponder, TX
Plants to stem bank erosion in Ponder, Texas
We have a pond with a bridge over the middle in full sun with a steep bank on one side. The bank is difficult to maintain and we need some natural looking low maintenance plants or ground cover to pl...
view the full question and answer
Ponder, TX
Problems with Escarpment black cherry from Ponder TX
I have an escarpment black cherry that is about three years old and about 9 feet tall. It was healthy until this last summer when its began to bark peel and sap run out at the base of the tree. The af...
view the full question and answer
Ponder, TX
Trees that are non-toxic for horses
I live in Ponder, Tx. We have some acreage and horses and wish to plant trees to afford some shade for the horses. Can you tell me what trees are toxic to horses.
view the full question and answer
Denton, TX
Native plants in Denton Co. TX pollinated by bats or hummingbirds
I am looking for a list of Denton Co. TX native plants that are pollinated by bats? Do we have any? How about hummingbirds?
view the full question and answer
Denton, TX
germinating Gulf coast penstemon and purple coneflower
I'm interested in propagating gulf coast penstemon (penstemon tenuis) from seed. Do I have to mascerate the 'berries' to remove the pulp from the seed, and do I have to stratify the seed to get th...
view the full question and answer
Denton, TX
Weed prevention in vegetable gardens
Mr.Smarty Plants - I know this isn't your area, but we have a vegetable garden that has been plagued by summertime weeds. Do you have a recommendation for a control plan we could implement during t...
view the full question and answer
Denton, TX
Perennial vine for full sun, Denton, TX
I would like to grow a perennial vine that would tolerate full sun during the day. A flowering or non-flowering is fine. I do NOT want anything that is poisonous, i.e. Carolina jasmine, since this w...
view the full question and answer
Denton, TX
Problems with non-native impatiens in Denton, TX
Dear Mr. Smarty Plants,
4 weeks ago I planted a shady bed (2'x10') with impatiens for the third year in-a-row. Previously, the plants thrived & bloomed till November. Three weeks ago, something ...
view the full question and answer
Denton, TX
Live oak leaves yellowing from Denton TX
In autumn of 2010 I planted 10 live oaks about 6 to 7 ft. tall. I have see that during the month of Dec. 2011 to Jan. 2012 they are showing some yellow leaves. What can I do to help them?
view the full question and answer
Denton, TX
Cherry trees in the North Texas area
Will cherry trees grow well in the North Texas area?
view the full question and answer
Denton, TX
Maple roots in lawn in Denton TX
I purchased a new home 4 years ago that came with a landscape package. There are 2 trees in the front yard that I think are red maple trees. I am now seeing their roots appear above the ground which...
view the full question and answer
Denton, TX
Puppy-proof plants in Denton TX
I recently got a couple of puppies that stay outside in a fenced off area of the backyard. Of course, they love trying to dig under the fence and get out. I placed cement landscaping border stones alo...
view the full question and answer
Denton, TX
Mrs. Johnsons favorite flower
I recall the the Black-eyed Susan was Lady Bird Johnson's favorite flower, is that true?
Did she have other favorites?
view the full question and answer
Denton, TX
Are vines harmful to bricks and mortar?
I am really fond of native vines such as crossvine, coral honeysuckle, American wisteria and carolina jessamine.
I love the look of vines on walls and I would like to add this to a landscape design.
...
view the full question and answer
Denton, TX
Post-bloom period care for Pink evening primrose
Hello,
I live in Denton, TX. I introduced pink evening primrose as a ground cover to a xeriscaped section of my property a few years ago. I have pretty much left it alone and let it do its thing an...
view the full question and answer
Denton, TX
Redbud leaves turning yellow in mid-summer
The leaves on our redbud trees are turning yellow. The yellow leaves are pale with no other spots and no dark veins. I don't know for sure which variety of redbud they are or how old they are (more t...
view the full question and answer
Denton, TX
Small shrubs for flower bed in Denton, Texas
I have a small flowerbed that faces south on the front of my house. What small shrubs would be best in that situation?
view the full question and answer