En Español

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?

Share

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

Friday - July 29, 2005

From: Santa FE, NM
Region: Southwest
Topic: Wildflowers
Title: Deadheading or trimming back of Asclepias spp
Answered by: Joe Marcus

QUESTION:

I have some butterfly weeds (flowers) and I have heard conflicting stories as to how to cut them back. Should they be deadheaded to elongate bloom time or does that prevent any seeds from replanting? Should they only be cut back in the fall every other year? 1/3 of the way back?? Thanks!

ANSWER:

You may deadhead your butterfly weeds (Asclepias spp.) if you wish your plants to produce more flowers.

Butterfly weeds make nice cut flowers. Sear the cut end of the flower stem with a flame or dip in hot water to stop the milky sap from running. Let the second or third flush of flowers produce seed pods if you would like them to.

You should cut your butterfly weeds back by 1/3 to 1/2 in early spring before new growth begins if desired to tidy up the plant and encourage new growth. Alternatively, you may wish to wait until after the spring Monarch butterfly migration has passed and prune then.
 

More Wildflowers Questions

Frostweed under oaks
September 29, 2007 - Our 5 acre property is located about 12 miles West of Salado on FM 2843. Under our beautiful Live Oak trees reside some plants that are just coming into bloom (9/29/07). They are about 3-4 ft high wit...
view the full question and answer

Bluebonnets for wedding centerpieces in Ft. Worth
April 14, 2009 - I am looking to purchase 25 live bluebonnet plants for my wedding centerpieces. I need them by May 15, 2009. Do you sell them?
view the full question and answer

Hymenocallis caroliniana and Hymenocallis liriosme Differences
October 09, 2013 - A couple of years ago a neighbor gave me three huge bulbs of a type unknown to her. They fit the description of a spider lily. In attempts to identify it I found Hymenocallis liriosme and Hymenocallis...
view the full question and answer

Arizona centaury near Lost Maples from Austin
November 05, 2012 - I found a clump of Arizona centaury growing/blooming beside a road near Lost Maples State Nat. Area in the Texas hill country last week. Centaurium calycosum is the scientific name. I have 2 questio...
view the full question and answer

Hanging plants for Austin, TX
May 18, 2014 - I'm looking for a hanging potted flower suggestion for Austin. Most locations are shaded under a large tree, but some locations may have several hours of afternoon sun. I'd love to see some hummin...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2016 Lady Bird Johnson Wildflower Center