Mountain Laurels
Q.

Yellow Leaves and Black Spots

Anonymous added on January 23, 2011 | Answered

My poor yuccas looks 'yucky' right now,  and I sure hope I'm not losing them. There have yellowing leaves with lots of black spots. Also, my Rosemary bushes have lots of dying limbs right in the center (the rest of the bushes look healthy). One more thing, my Mountain Laurel trees have started yellowing too.  I know they have not been overwatered. When they were healthier, the leaves were a beautiful forest green. They are not full grown, just about 2 feet tall right now.

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on January 24, 2011

I would start by getting your soil tested. You sound like you may have a yard wide nitrogen deficiency or an iron deficiency. The soil in the container that they were planted in when you bought them has probably kept them healthy up until now, but now that this has been depleted, the natural soil of your yard cannot support them. If they have been planted for a while, too much rain may have washed away the nutrients. Some fertilizer, regardless, cannot hurt.

Check the undersides or the leaves of the plants for pests as well. Most pests that might possibly cause this kind of damage hide on the bottom of leaves.

00
Was this answer useful?

Log in or sign up to help answer this question.
Did you find this helpful? Share it with your friends!

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

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

Looking for more?
here are more questions about...
Mountain Laurels
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