Host an Event Volunteer Join Tickets

Support the plant database you love!

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?

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
See a list of all Smarty Plants questions

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!

Need help with plant identification, visit the plant identification page.

 
rate this answer
2 ratings

Thursday - February 26, 2009

From: Granbury, TX
Region: Southwest
Topic: Pruning, Herbs/Forbs
Title: Trimming back Texas Star hibiscus in Granbury TX
Answered by: Barbara Medford

QUESTION:

Can I trim back my Texas Star Hibuscus? And when do I do that?

ANSWER:

The funny thing about Hibiscus coccineus (scarlet rosemallow), also called Texas Star Hibiscus, is that it isn't even native to Texas, but is a southeastern United States plant, with its range from Florida to Mississippi. Some plant nursery operator looked at those gorgeous red flowers and decided it would sell well named "Texas Star." This is okay, because it's still a North American native, and has adapted well to Texas soils.  And, yes, it can be trimmed. We used to trim ours as soon as they began to die back to the ground in the Fall, leaving about 6 inches of stub to show where the roots where. It can certainly still be trimmed now, and clean up any fallen leaves or debris to help prevent mold and harboring insects. It emerges from the roots fairly late in the Spring.


Hibiscus coccineus

 

 

More Pruning Questions

Pruning the leaves of Sago Palm.
March 10, 2010 - Is it a cardinal sin to remove all the sago palm branches? This winter they were so badly scorched by the cold that hardly a frond went unaffected. So I cut them all off as I needed to get around the...
view the full question and answer

Pruning Roughleaf dogwood
November 28, 2013 - We put 5 rough-leaf dogwoods along our side deck; having been told (by the local, natural plant seller) that they would reach a maximum height of 6 feet. They have grown taller than that (despite som...
view the full question and answer

Yaupon sprouts from Bennettsville SC
May 29, 2013 - I have Yaupons in a flower bed and they have too many shoots to pull up, can I spray them with roundup and not kill the bush and what strength should I use?
view the full question and 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 the full question and answer

Removing Old Poison Ivy Vines from Pecan Trees
July 07, 2016 - I am in the process of cleaning up a creek bank that has very old pecan trees on it. The pecan trees have large poison ivy vines growing up the trunks. We cut one vine and when it died and fell from ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.