Top Questions About Strelitzia

Click on links below to jump to that question.

Questions About Strelitzia

Asked by
Claudia25 on
September 13, 2017
Sydney Australia

Q. Black spot on strelitzia flowers AFTER opening

Hi. In my new garden, I have inherited a Strelitzia, which is very overgrown and badly in need of a prune. I have noticed that it flowers beautifully, but black spots develop once the flowers open. Help!

Answered by
BushDoctor on
September 13, 2017
Certified Expert

This plant seems to be suffering from either a bacterial or fungal infection. Luckily there are a few things you can do to help it out. I recommend putting wettable sulfur around the soil, along with a little dolomitic lime, and try to keep it from getting overly wet. You may also spray the plant with one or more of the following: Garlic oil, neem oil, rosemary oil, lavender oil, or mint oil. All of these have wonderful antiseptic properties. Here is an article of over-all care of the plant.

Was this answer useful?
Join Us - Sign up to get all the latest gardening tips!

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

Learn More