Grevillea Plants

Grevillea ‘Long John’

elsid2272 added on September 30, 2017 | Answered

I have a 3yr old Grevillea 'Long John' in the ground. It is thriving and looks beautifully alive. But for the last 3 months or so the foliage is turning from a dark green to yellow. I had been watering it twice a week for 8 minutes and when I noticed it getting lighter I changed it to 8 minutes once a week. It did not seem to make any difference, it is now almost yellow. But it still looks absolutely blooming. WHY IS THIS PLANT TURNING YELLOW?

Share this Question:
Log in or sign up to help answer this question.
Check here if you would like to receive notifications every time this question is answered.
You are subscribed to receive notifications whenever this question is answered.
Certified GKH Gardening Expert
Answered on October 1, 2017

This sounds like a pH issue. Is this close to any water outlets, or maybe the street? It appears to be experiencing some pH swings. I would recommend applying dolomitic lime to the area around the tree. Here is a link to some articles that will help:

Was this answer useful?
Looking for more?
Here are more questions about Grevillea Plants

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.