Rent Shop Volunteer Join

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
1 rating

Thursday - August 17, 2006

From: Nottingham, MD
Region: Mid-Atlantic
Topic: Non-Natives
Title: Suggestions for alternatives to invasive, non-native English ivy
Answered by: Nan Hampton

QUESTION:

Can English ivy be planted in a pot, kept oudoors, and expected to endure our Maryland winters?

ANSWER:

English ivy (Hedera helix) is native to Europe, western Asia and northern Africa and is considered invasive in at least 18 U. S. states. We are not enthusiastic about giving advice to propagate non-natives given that: "The mission of the Lady Bird Johnson Wildflower Center is to increase the sustainable use and conservation of native wildflowers, plants, and landscapes." Nonetheless, English ivy is very cold hardy and would probably survive Maryland winters in a pot outdoors; and, it would probably do no harm as long as you were careful to remove any blossoms and/or seeds and kept it where none of the foliage could come in contact with the ground to take root.

If you are looking for a a hardy evergreen plant for the Maryland outdoor winters, the Christmas fern (Polystichum acrostichoides) and Cinnamon fern (Osmunda cinnamomea) would be good native substitutes. If you are looking for a vine, not necessarily evergreen, Trumpet creeper (Campsis radicans) and the native American wisteria (Wisteria frutescens) would be good choices for Maryland.

 

More Non-Natives Questions

Eliminating non-native grasses growiing in non-native alfalfa in Clint, TX
April 16, 2011 - I have six acres of alfalfa in Clint, Tx which was planted three years ago. After taking it to Jaime Iglesias PhD, CEA-Agriculture Texas Agrilife Extension El Paso County; he responded: Mr. Zuniga: ...
view the full question and answer

Will non-native and invasive Mexican petunias grow under oak trees from St. Augustine FL
March 24, 2013 - Will Mexican Petunias grow under an Oak tree?
view the full question and answer

Non-native, invasive King Ranch bluestem and Coastal bermuda for horses
April 02, 2008 - Is blue stem grass mixed with coastal good for horses?
view the full question and answer

Non-native oleander failing to thrive in Corpus Christi
May 05, 2010 - I live in South Texas (Corpus Christi). My husband planted Red Oleander in partial to full sun about 1 1/2 weeks ago. They are watered by our sprinkler system. They have recently started to bloom, ...
view the full question and answer

Getting rid of giant ragweed in Austin
October 25, 2008 - How can I get rid of a large field of giant ragweed? Part of the site is a steep slope, which is difficult to mow. I want to encourage native grasses but they are crowded out by the ragweed.
view the full question and answer

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