Top Questions About Acanthus Plants

Click on links below to jump to that question.

Questions About Acanthus Plants

Asked by
Michel Jeunehomme on
August 28, 2016

Q. Plants near eucalyptus

Would like details on bear breeches near eucaplyptus.

Answered by
Alisma on
August 29, 2016
Certified Expert
A.

Bear's breeches, or Acanthus mollis, is listed as a plant that can grow under Eucalyptus where many plants won't grow. This article will help with plant care:

https://www.gardeningknowhow.com/ornamental/foliage/bears-breeches/grow-bears-breeches-plant.htm

Watering it sufficiently will be important because eucalyptus trees absorb a huge amount of water from the soil around them.

00
Was this answer useful?
Join Us - Sign up to get all the latest gardening tips!
Asked by
Shell on
May 23, 2017

Q. Acanthus white water

I live in RI where I believe it to be zone 5. Will this plant survive if I bring it indoors in the fall?

Answered by
Downtoearthdigs on
May 25, 2017
Certified Expert
A.

This plant is hardy in zones 7-10.

You should be able to winter over indoors. It will die back in the late fall or early winter.

00
Was this answer useful?
Asked by
Hugh Anderson on
October 5, 2017

Q. White spots on acanthus leaves

What are the white spots and what do I need to do about them?

Answered by
BushDoctor on
October 5, 2017
Certified Expert
A.

That sounds like powdery mildew. You can remedy this with neem oil, rosemary oil, garlic oil, and/or lavender oil. Here is an article for more information: https://www.gardeningknowhow.com/plant-problems/disease/powdery-mildew-homemade-and-organic-remedies.htm

00
Was this answer useful?
Asked by
harro on
March 7, 2018

Q. Unknown plant

Hi there, I live on the Gold Coast in Queensland and found an unknown plant growing in the garden (see attached picture). It looks similar to Acanthus Mollis but has some serious looking thorns on its stems. Any ideas as to its common/botanical name?

Answered by
MichiganDot on
March 7, 2018
A.

Acanthus literally means thorns and there is speculation that it is responsible for the Crown of Thorns in Christendom. It could be you are accustomed to cultivars that don't have thorns but I think you are spot on with your genus guess. It is invasive in some areas and spreads by underground rhizomes.

00
Was this answer useful?
Asked by
SKujolic on
May 20, 2018

Q. How to plant

Acanthus mollis: to restrict its width growth, can it be planted in a 5 gallon container with the bottom cut out? It is for an area only 30″ wide.Any other suggestions?

Answered by
BushDoctor on
May 20, 2018
Certified Expert
A.

What I would do would be to plant an empty pot in the ground, and put the plant in a restricted container inside of this pot, so that it can be removed. This will take diligent trimming of the top and the roots each year, so this design will help it to be much easier for you. It will combine the aspects of container, and in ground gardening, so that you can control size, while still maintaining a professional appearance.

00
Was this answer useful?
Asked by
Anonymous on
June 15, 2018

Q. Ants on Thunbergia grandiflora

I recently purchased a Thunbergia grandiflora vine. It will remain in a pot since I live in zone 6a. There are a lot of ants on it. Can I spray it with insecticidal soap or is the plant sensitive to such treatment? I don’t want to lose it. What is the best way to control the ants?

Also, when it gets too cold to remain outside, can I cut it back and overwinter it indoors in an unheated garage or in my heated basement?
Overwintering care? Thanks.

Answered by
Downtoearthdigs on
June 16, 2018
Certified Expert
A.

Ants are naturally attracted to the flowers on your vine.
This link will help you.

https://www.gardeningknowhow.com/plant-problems/pests/insects/keeping-ants-off-flowers.htm

00
Was this answer useful?
Learn

Learn From
Your Peers on
Our Blog

Visit Our Blog
The website that started it all!
Main Website

Do you know a lot about gardening?
Become a GKH Gardening Expert

Learn More