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
Not Yet Rated

Tuesday - February 08, 2011

From: Austin , TX
Region: Southwest
Topic: Pruning, Seasonal Tasks, Herbs/Forbs
Title: Cutting back perennials from Austin
Answered by: Barbara Medford

QUESTION:

When is it time to cut back native plants; salvia;copper canyon daisy; verbena, etc?

ANSWER:

Most Texas perennial flowering plants need some cutting back when they have dropped their leaves. Many can actually be cut to the ground, as they are going to come back from the roots, but we like to leave a few 6-inch stalks standing up so we know that's a plant we planted, and not a weed that needs to be yanked. Always clean up around your plants, taking away dropped leaves and stems, to help prevent mildew, disease and insect damage.

 

More Pruning Questions

Trimming of Pineapple Sage and Salvia Greggii
October 07, 2007 - I live in Central Austin. My question is: When is the best time to trim back Pineapple Sage and Salvia Gregii? How far back should these plants be trimmed?
view the full question and answer

Pruning dogwood in TX
February 02, 2011 - I have a roughleaf dogwood (Cornus drummondii) sapling that I would like to keep at shrub height (~6 ft) rather than let it form a tree. Can I encourage this by cutting the main trunk, and if so, by ...
view the full question and answer

Fruit on Jasmines
March 13, 2013 - My jasmines have grown some small purple fruits and she is about to get her full bloom soon. Should I cut them off to help the plants out? What are they?
view the full question and answer

Best time of year to trim oak trees from Beloit WI
July 23, 2010 - What is the best time of year to trim oak trees?
view the full question and answer

Making Ruellia nudiflora thicker in pot from Tucson AZ
June 25, 2012 - Can Ruellia Nudiflora be propagated in the same pot as the parent plant? Can it be cut back to stimulate a denser plant? I have plants in several pots and would like to 'thicken' the plant. Tha...
view the full question and answer

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