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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.

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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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Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

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Eastern Red Cedar Roots
March 17, 2016
Would an Eastern Red Cedar root system damage underground irrigation pipes?
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Controlling KR Bluestem
February 11, 2016
How can I control KR Bluestem in my 55 acre coastal bermuda hayfield? The field has a Farm Road along one side planted in KR, and now the hayfield is about 25 - 30% KR. Summer burn is fairly dangerous...
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Are Royal Poinciana and Royal Empress trees the same?
October 09, 2015
Hi, can you tell me if the Royal empress tree and the Royal Poinciana are the same tree?
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Invasiveness of Oenothera speciosa?
October 02, 2015
Hello! I received a large package of Oenothera speciosa seeds and would like to plant them this month. I've read elsewhere that they can choke out out other plants and am wondering to what degree thi...
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Information about person who handles invasive species at the Wildflower Center
October 01, 2015
Would you please provide me a name, phone, and email address, of the person in your office who handles invasive species? Thanks,
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Evergreen privacy screen
August 10, 2015
We are looking for a good plant(s) that would provide a privacy screen by our fence. We were looking at clumping bamboo (maybe black) because it grows quickly and it not too thick. The new plants woul...
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Is Canna glauca invasive?
June 10, 2015
How aggressive is Canna glauca? I'm interested in planting one near a gutter downspout, but I'm afraid it will crowd out groundcovers (heartleaf skullcap and fall obedient plant) in the two location...
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Groundcovers to choke out invasive species in Virginia
June 08, 2015
My yard has open woods and dappled light with clay soil. Thirty years ago we removed huge briars and since English Ivy was getting in by itself, we thought we would let it come; unfortunately, it not ...
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Controlling Devil's Bit in Collin County, TX
June 05, 2015
I live in Collin County and our pasture has a growing section of Devils Bit taking over everything. I've been using 2,4-D on it with some success. What is the best method of control for this ...
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How to eliminate roadside thistles
May 26, 2015
When we drive along the highway we see lots of wildflowers and no thistles in the median. How does the Highway Department keep the thistles out? Here in Kerrville, we are overwhelmed by thistles thi...
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