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?


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

Monday - April 16, 2007

From: Wichita Falls, TX
Region: Southwest
Topic: Propagation
Title: Planting time for Helianthus annuus in Wichita Co., TX
Answered by: Nan Hampton


I need to know when is the best time to plant sunflowers in the Wichita Falls, Texas area? Thank you for your time.


Both Helianthus annuus (common sunflower) and Helianthus petiolaris (prairie sunflower) are native to Wichita County, Texas, and both may be sown outdoors after the average date of the last frost. You can start them inside earlier to be transplanted outdoors when danger of frost is past. Since it is mid-April now, if you plant them right away, you should still be able to have blooms by late summer. Please note the advice on using treated seeds of H. annuus to ensure better germination.


Helianthus annuus

Helianthus petiolaris




More Propagation Questions

Drought tolerant grass for small lawn from Woodbury TX
June 07, 2014 - Trying to establish small lawn area, needs to be drought tolerant, water wise. Have tried Turffalo with poor results. Recommendation please.
view the full question and answer

Protecting agave pups in San Antonio
April 23, 2013 - I would like to share the soon to happen bloom of two century plants on my property; they are sisters planted at the same time. I am sad to know they will die but will do all that I can to protect the...
view the full question and answer

Adding Wildflowers to Corpus Christi
May 20, 2012 - I have a dry sandy yard, full sun in Corpus Christi with lot's of stickers mostly, want to transform to wildflowers. When should I plant, how should I prepare soil, should I dig out stickers? Which w...
view the full question and answer

Can lantana be grown in British Columbia from Vernon BC
October 20, 2012 - Can I grow lantana in Vernon B.C. Canada?
view the full question and answer

Duplicate of English holly for Eufaula OK
January 03, 2010 - I wish to have a shrub that would duplicate the red berries and foliage of English holly. Tolerance of cultivation is also desired.
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2016 Lady Bird Johnson Wildflower Center