Native Plants

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.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

rate this answer

Monday - December 10, 2012
From: Chula Vista, CA
Region: California
Topic: Invasive Plants, Non-Natives, Vines
Title: Invasive mandevilla from Chula Vista CA
Answered by: Barbara Medford
QUESTION:
How can I rid my yard of mandevilla that has invaded from my neighbor's yard?ANSWER:
The Lady Bird Johnson Wildflower Center, home of Mr. Smarty Plants,is dedicated to the growth, propagation and protection of plants native not only to North America but to the area in which those plants grow naturally. According to this University of Nebraska at Lancaster article Growing Mandevilla, the plant is native to Central and South America, specifically, Argentina and requires USDA Hardiness Zones of 10 to 11. Obviously, in San Diego County your climate would meet the growing requirements for this plant, so you can't rely on freezing it out. Although this plant is out of our area of expertise, we do have instructions to help you get rid of it. It will not be easy, and you will probably have to repeat the treatment many times, even if the neighbor removes their mandevillea.
First of all, you need to find where it is emerging from the ground. Realize that there may be more than one origin for the vine. When you find where its growing from the ground, cut or saw it in two. Immediately, paint the cut end that goes into the ground—the one attached to the root—with an herbicide. Check with a reputable nursery for an effective herbicide. Using a small paintbrush or a small sponge with a handle to apply the herbicide. It is necessary to apply the herbicide immediately after cutting the vine since some plants can quickly repair breaks in cell walls and this would prevent the herbicide from being taken up as readily by the plant. Be cautious about getting herbicide on any desirable plants nearby. We advise against spraying the herbicide since it can drift onto desirable plants and perhaps kill them. Also, read carefully and follow the directions for using the herbicide to avoid any dangers to your health.
More Non-Natives Questions
Non-native bougainvillea annual or perennial in Las Vegas?
April 04, 2010 - Are bouganvilleas annual or perianneal plants? What do you do w/them in the winter time. We live in Las Vegas NV
view the full question and answer
Planting wildflowers from Wichita Falls, TX
August 24, 2013 - Hi,
Thanks so much for the answers you give! You've been very helpful to me in the past. I have two quick questions:
1) I have been harvesting seeds from my wildflowers. I wonder when the best time...
view the full question and answer
Transplanting non-native crape myrtle in Scottsdale AZ
May 11, 2014 - When is the best time to transplant dwarf crape myrtle in Scottsdale AZ?
view the full question and answer
Non-native Indian Hawthorn and Abelia resistance to deer from Ackerman MS
January 16, 2010 - I recently landscaped my yard. I have a large variety of bushes and trees. They have been planted for about a month. Yesterday, while out in the yard, I noticed that about half of my Indian hawthorn...
view the full question and answer
Smarty Plants on Gloxinias
August 20, 2004 - How do I care for my newly acquired Gloxinias?
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |