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?

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

Tuesday - June 14, 2011

From: Clearwater Bch, FL
Region: Southeast
Topic: Non-Natives
Title: poor blooming on (non-native) plumbago
Answered by: Guy Thompson

QUESTION:

I recently purchased several blue Plumbago plants that were covered in blooms. We planted them in our front beds that receive about 5 hours of morning sun then afternoon shade. I have watered them every other day to get them established and the plants look very healthy but all the blooms are gone and have not rebloomed at all after the first week of being in the beds. What do I need to do and do they need some bloom fertilizer? We live in Florida where Plumbago is often used in flower beds.

ANSWER:

There are some U.S. native species of plumbago, e. g., Plumbago scandens (Doctorbush), but I expect you have a different and more common species, Plumbago ariculata, which is a native of South Africa.  Mr. Smarty Plants doesn't keep info on non-native plants, so I can't be of much help.  However, I am sympathetic since I have had a similar problem with P. ariculata myself. This plant blooms on the current year's growth, so trimming back the branches, and particularly the spent flower heads, should encourage a new round of growth and new flowers.  Now that your plants are established, cut back on the water. They are drought-resistant, and too much water will promote vegetative growth in preference to flowers. If you fertilize, give them a high phosphorus fertilizer.  Good luck!

 

More Non-Natives Questions

Problem with non-native gerbera daisies
June 09, 2009 - My gerber daiseys leaf but they don't want to bloom. They come back. What am I doing wrong?
view the full question and answer

Toxicity of non-native Royal Empress tree
April 23, 2009 - We want to plant some fast-growing trees for shade for my horses. My friend wants to use Royal Empress trees. Can you tell me if these are toxic to horses (and also goats)? I have a lot of clay in t...
view the full question and answer

Problem with non-native sweet vernal grass, Anthoxanthum odoratum
June 24, 2010 - Hello there Mr. Smarty Plants, I have a question about growing Anthoxanthum odoratum known as sweet vernal grass. I'm trying to get Anthoxanthum odoratum, sweet vernal grass, to grow in my yard becau...
view the full question and answer

Care of non-native Primrose jasmine
March 14, 2007 - I have 4 large primrose jasmine shrubs that were transplanted about 4 years ago. They were cut back fairly harshly at that time. Since then, the centers remain very woody... no greenery... but the l...
view the full question and answer

Yard Trees for Burleson, TX
July 24, 2011 - We need to replace 2 mature pear trees in our front yard, north side of the house in Burleson, TX. We are looking for faster growing trees that will last for decades that resist disease in clay soil....
view the full question and answer

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