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.
Help us grow by giving to the Plant Database Fund or by becoming a member
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
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.
Search Smarty Plants
| topic | question | |
| Plant ID and pruning in Portage IN April 09, 2009 I'm looking for information on trimming a bush about 6 feet in diameter with orange horns in bloom and its name. View Mr. Smarty Plants' Answer | ||
| Pruning a mock orange in Charleston WV March 30, 2009 How far back and when do I prune a "Mock Orange" in order to get it to bloom? View Mr. Smarty Plants' Answer | ||
| Stubs of Texas Star Hibiscus in Abilene, TX March 26, 2009 We have cut back our outdoor Texas Star Hibiscus for 4 years and now have a large number of old stubs that the new growth must navigate around. Will it kill the plant if we dig up the old stubs? At so... View Mr. Smarty Plants' Answer | ||
| When and how to prune lavender (Lavandula sp.) March 20, 2009 Dear Mr. Smarty Plants I have a Goodwin Creek Lavender plant that I planted last year. It did very well but my question is about pruining. It seems that there is some growth coming up now that it... View Mr. Smarty Plants' Answer | ||
| Cutting back achillea in New York March 18, 2009 Last summer I planted three gorgeous hearty achillea with flat, yellow tops, about 3 feet high or more each, in my sunny garden. But after they were done flowering, I left those very pretty brown stem... View Mr. Smarty Plants' Answer |  | |
| Controlling size of red yucca in Austin March 13, 2009 I have planted red yucca in my backyard, which produces many flowering stalks for the past few years. These red yucca are becoming too large for the area that are planted in. What recommendations do... View Mr. Smarty Plants' Answer | ||
| Trimming a rock rose in Richardson TX March 11, 2009 I have a Rock Rose (Pavonia lasiopetala)in my garden. I cannot find any information on how to trim or whether I should trim this plant. If so when? Mine is pretty much growing all over the place and... View Mr. Smarty Plants' Answer | ||
| Removal of Carolina Jasmine in San Antonio March 02, 2009 We are attempting to permanently remove large old-growth Carolina Yellow Jasmine, Gelsemium sempervirens bushes from our property. The bushes are cut down. Any suggestions for stump/root removal (mec... View Mr. Smarty Plants' Answer | ||
| Trimming back Texas Star hibiscus in Granbury TX February 26, 2009 Can I trim back my Texas Star Hibuscus? And when do I do that? View Mr. Smarty Plants' Answer | ||
| Trimming a bur oak in Llano, TX February 06, 2009 We have a beautiful, large Burr Oak next to our house. This tree has many large lateral branches. I have trimmed dead branches, but no other trimming. It grows a lot of "suckers" during growing sea... View Mr. Smarty Plants' Answer | ||
| Maintenance of Bicolor Sage in Austin February 05, 2009 I had quite a bit of Bicolor Sage planted when my yard was landscaped. I am now wondering on the proper plant maintenance. Do I prune back and if so, how much and when do I prune? View Mr. Smarty Plants' Answer | ||
| Storm damage to native sweet bay magnolias in Kentucky February 04, 2009 Can you please share information on storm damage to sweet bay magnolias; if the top is broken off can the tree maintain its natural shape or will the sides begin to grow more than the top; i.e., growt... View Mr. Smarty Plants' Answer | ||
| Trimming of dead foliage on trunks of yucca in California December 21, 2008 There is a Yucca plant in the back yard. I want to know how to get the old foliage that has died off of the trunks, it looks kind of ragged. The foliage is about three feet from the green. Can you ... View Mr. Smarty Plants' Answer | ||
| Hedge of native Purple Sage in Austin November 20, 2008 Hi, I would like to plant a dense hedge of Purple Sage that will hopefully grow from 6-8 ' tall and about 4' wide. I purchased the Silverado Sage Leucophyllum frutescens 'Berstar Dwarf' variety.... View Mr. Smarty Plants' Answer | ||
| Hurricane damage to pecan tree November 12, 2008 The recent hurricane twisted the top out of our pecan tree, leaving a couple still attached but down on the ground. Could we cut all of the damage off and just leave the trunk? Would there be a chan... View Mr. Smarty Plants' Answer | ||
| Winter pruning for yucca in Michigan November 10, 2008 I live in SE Michigan and have an outdoor yucca plant that has grown quite large. My father tells me that I can literally cut it down to the ground in the fall and that it will grow back the followin... View Mr. Smarty Plants' Answer | ||
| Trimming native Yucca filamentosa for winter in Illinois October 18, 2008 I live in northern IL and I have approximately 5 yucca plants, Adams needle, my question is do I need to trim them down for winter for best growth the next year? View Mr. Smarty Plants' Answer | ||
| Pruning of Burning Bush in Missouri October 15, 2008 I live in MO and am pretty sure I have burning bushes on either side of my deck. My question is that they are huge and overgrown but I feel if I cut them lower and shape the sides up I will be left w... View Mr. Smarty Plants' Answer | ||
| Pruning for native oak in Houston October 06, 2008 I have an oak tree, and I was wondering if I prune from the top down, would it get fuller at the bottom? Or can you tell me how to prune it? I have been pruning from the bottom up and it is growing ta... View Mr. Smarty Plants' Answer | ||
| Preservation of a Lantana Tree in New York October 05, 2008 I have a Lantana Tree that grew beautiful over the summer, now Winter is coming and I don't know what to do with this tree, I live in Monroe, New York. Could you please help me out. Thank you. View Mr. Smarty Plants' Answer | ||
| Freeze-back of Hamelia patens in winter in Texas October 03, 2008 Will the hamelia patens freeze back in the winter ? View Mr. Smarty Plants' Answer | ||
| Pruning native Senna lindheimeriana September 28, 2008 I asked a question about pruning a Texas Senna tree. The Texas Senna I have is either a S. wislizenii or a S.lindheimeriana. It is a beautiful tree that I purchased at a Texas Native Plant nursery. ... View Mr. Smarty Plants' Answer |  | |
| Survival of native yaupon in The Woodlands, TX after hurricane September 25, 2008 One of my large native yaupons trees (8ft) fell away from a group during the hurricane. I have uprighted and tied it off for stability. Now the leaves are all brown and falling. Is the tree dead or... View Mr. Smarty Plants' Answer | ||
| Leaves dropping on native Texas Mountain Laurel in San Antonio September 20, 2008 Please help. We have a beautiful TX Mountain Laurel in our front yard. This year the leaves are dropping like snow in the north. What do you think is wrong with our tree? View Mr. Smarty Plants' Answer | ||
| Pruning mature cedar elm trees in San Antonio September 14, 2008 When is the right time to prune my several mature cedar elm trees? I'm in San Antonio, and they have never been trimmed in the 55 years we have lived in this home. I have several that are at least 7... View Mr. Smarty Plants' Answer | ||
| When is the appropriate time to prune pecan trees in Hewitt? September 07, 2008 Labor Day Weekend my husband decided to trim all the low branches on a big pecan tree in our back yard which I thought should had been done at the first of the year, our temprature is in the mid 90's... View Mr. Smarty Plants' Answer | ||
| Washingtonia palms need to be skirted? August 31, 2008 Dear Mr. Smarty Plants, I have five Washingtonia palms on my property that have never been skirted and look rather shabby. The interesting thing is that they have thrived (20-30 ft) here to begin with... View Mr. Smarty Plants' Answer | ||
| Pruning of Grape Kool Aid Plant in California August 03, 2008 I have a Grape Kool Aid plant and was told it would grow to 6 or 7 feet tall, but it is well over that and I need to know if I can prune it and if so how? View Mr. Smarty Plants' Answer | ||
| Failure to bloom of Tecoma stans in Austin August 02, 2008 We Planted a Yellow Esperanza shrub 2 years ago that was blooming when we purchased it. It bloomed very little last year and not at all this year. It looks very healthy and each year gets about 10 f... View Mr. Smarty Plants' Answer | ||
| Pruning and deadheading rosa rugosa while blooming August 01, 2008 Can you prune the dead flowers and branches of rosa rogosa while it is still blooming? View Mr. Smarty Plants' Answer | ||
| Eradication of mahonia repens July 27, 2008 What is the best way to kill and/or remove mahonia repens? View Mr. Smarty Plants' Answer | ||
| Controlling pumpkin vine in British Columbia July 15, 2008 I have never grown pumpkins before but decided to try one plant this year. It seems to be taking over my small garden space. Can I prune it back? I only want one or two pumpkins for my grandchildre... View Mr. Smarty Plants' Answer | ||
| Deadheading a petunia and why July 13, 2008 Can you please tell me the correct way to de-head a petunia and why? View Mr. Smarty Plants' Answer | ||
| Mystic Spires salvia in transplant shock July 04, 2008 Hello. I live in Taylor, Tx. Just outside Austin, Texas. I recently planted mystic spires. One gallons and will receive the hot afternoon sun. All the research says they can tolerate this location. Th... View Mr. Smarty Plants' Answer | ||
| Non-blooming Tecoma stans in Fredericksburg, TX June 30, 2008 We have an esperanza plant purchased last year from Walmart and planted outside before winter. It flowered excellently last year. Just before winter we cut it back to about a foot. So far this summer ... View Mr. Smarty Plants' Answer | ||
| What about the brown dots on my Silver sage? June 27, 2008 During the past year, the leaves on my silver sage bushes around the perimeter of the front of my house have turned yellow in places and there are tiny brown dots on virtually all of the leaves. If I ... View Mr. Smarty Plants' Answer |  | |
| Non-branching mimosa tree June 26, 2008 I have a Mimosa Tree, just about 2 years old, grown from seed. The problem with it is that it has not branched out, it looks like one long branch growing out of the ground, about 5 feet if stood strai... View Mr. Smarty Plants' Answer | ||
| Premature leaf drop on Red Maple in Kentucky June 25, 2008 I have a ten foot Red Maple tree that has been set out for 4 years. Its leaves have slowly turned colors until it currently looks like fall. The leaves are not falling off nor is there yet any s... View Mr. Smarty Plants' Answer | ||
| Buffaloberry from Grandma June 25, 2008 I have a "BUFFALO BERRY" that my Grandma brought back from South Dakota.It is approx.8yrs.old.All was well until this spring.It was budding out when we had a very hard freeze and got 3" of snow.Now... View Mr. Smarty Plants' Answer | ||
| Safe time to trim live oak trees June 20, 2008 Our live oak trees need a little trimming, as some of the branches are hanging too low, almost to the ground. We planted them about 5 years ago, so they are well established, healthy trees. My husband... View Mr. Smarty Plants' Answer | ||
| What to do with bloom stalk on yucca June 08, 2008 Six years ago, I dug up two small narrow-leaf yuccas from a deer lease outside of Junction, Texas. I planted them in a raised bed in my yard and the smaller of the two survived and grew. To my surpris... View Mr. Smarty Plants' Answer | ||
| Trimming back Agave havardiana June 05, 2008 Hi.. thanks for all the great information on Agaves. We have a number of Agave Havardiana (blue) that love where we planted them. Several have gotten HUGE. So much so that they are starting to ge... View Mr. Smarty Plants' Answer |  | |
| Pruning of Bauhinia lunarioides May 29, 2008 I have a Bauhinia variegata..when is the best time to prune it? it tends to grow horizontally..where do you clip off the limbs? View Mr. Smarty Plants' Answer |  | |
| Repairing damage to Anacacho Orchid Tree in Austin April 30, 2008 Hi You Guys!! We have an understory Anacacho Orchid Tree in the front and my sweetie was trimming the big oak and dropped a branch down, splitting one of the large branches off the Anacacho. The wou... View Mr. Smarty Plants' Answer | ||
| Failure of older branches on Bauhinia lunarioides to thrive April 27, 2008 We planted a sapling of the Anacacho Orchid Tree (Bauhinia lunarioides) winter (Jan, Feb?) and now it has leaves and blooms - but only off of new branches near its trunk, as the old branches haven't ... View Mr. Smarty Plants' Answer | ||
| Clipping of beans from newly planted Tecoma stans April 22, 2008 I purchased a Esperanza Plant in a pot from a nursery in April of 2008. We planted it and it is doing fine, but came with blooms and beans. Do I need to do clip or prune the beans at this stage of g... View Mr. Smarty Plants' Answer |  | |
| Browning of leaf tops on Iris plants April 22, 2008 My Iris plants bloomed beautifully, now some of the leaves are turning brown from the top down, about half way. Is this normal? What can I do about it and should I cut off the brown leaves? Also, what... View Mr. Smarty Plants' Answer | ||
| Failure to bloom of Texas Mountain Laurel April 15, 2008 My +/- 4 yr old Tx. Mountain Laurel, has never bloomed. It is in full sun. I sometimes (minimal) fertilize it. I've pretty much planted it and let it grow. Its been pruned back last year when som... View Mr. Smarty Plants' Answer | ||
| Trimming bloom stalks of iris April 15, 2008 Mr. Smarty: I live in Nevada, and have some very beautiful Iris plants. They have all blossomed and now I am left with stems. Is there any way I can cut them back so they blossom again? If so how shou... View Mr. Smarty Plants' Answer | ||
| Failure of Bald Cypress to fully leaf out April 14, 2008 My family just moved to a house in Burnet County, about 7 miles south of Bertram, close to the Balcones Canyonlands NWR, with very rocky limestone soil. We bought several trees last fall, including a ... View Mr. Smarty Plants' Answer | ||
| topic | question | |