En EspaŅol

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
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Saturday - October 18, 2008

From: Rehoboth Beach, DE
Region: Mid-Atlantic
Topic: Non-Natives
Title: Survival of non-native Cape Plumbago in Delaware
Answered by: Barbara Medford

QUESTION:

I have a cape plumbago shrub growing in a large pot outdoors - but we are in Delaware - where it won't apparently survive the winter. How can I keep my plumbago safe over the winter?

ANSWER:

Plumbago auriculata, Cape Plumbago, is native to South Africa and therefore out of our line of expertise. At the Lady Bird Johnson Wildflower Center, we recommend (and grow in our gardens) only plants native to North America and to the area in which they are being grown, because they are adapted to conditions in that area and so will require less water, fertilizer and maintenance.

We did however, find a website from the University of Arizona Cooperative Extension on Plumbago auriculata which said it is used as an annual in freeze-prone areas, and will only be perennial in USDA Zones 8b to 11; Delaware appears to be in Zone 6b. Another website you might want to look at is Taunton's Fine Gardening Cape Plumbago. This site says you can move it indoors, but it is especially prone to spider mites, whiteflies, and mealy bugs when being grown indoors.

 

More Non-Natives Questions

Problems with non-native Carrotwood tree in Toluca Lake CA
June 25, 2009 - My Carrotwood tree leaves are turning yellow and curling down, Why? Also due to a bad trim, the outer limbs are dying. Can you tell me what is wrong? It is an old tree and I would like to save it!
view the full question and answer

Tree with taproot for Jodhpur India
July 05, 2013 - I am a resident of India. I need information of a tree with tap roots to grow in my backyard. We have moderate to hot climate here. It needs to be as small as possible due to lack of space. It'd be g...
view the full question and answer

Transplant shock in non-native crape myrtle from Wesley Chapel, FL
June 12, 2012 - I just bought a 12 ft. crape myrtle and planted it, giving it plenty of water I think. After 3 days the leaves are wilting and flowers are falling off.
view the full question and answer

Locations where non-native Mimosa trees grow
May 23, 2005 - Where do mimos trees grow?
view the full question and answer

Pruning non-native razzmatazz rose from Canton MI
April 26, 2010 - I have 5 "hardy" rosebushes called "Razzamatazz" which are about 3 years old. I don't know how to prune them properly. I do cut the dead bloom back just before the "leaf of 5", which seems to...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center