Pine Trees
Q.

Pine Needles and Eucalyptus Damaging Soil

Anonymous added on February 23, 2011 | Answered

I have several large pine trees and eucalyptus trees on the hill behind my house. The leaves and needles find there way into my rose garden and flower beds. Will this prevent them from growing well, and is there anything I can do about it?

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

Both pine needles and eucalyptus leaves in themselves will not hurt your plants, but both needles and leaves are known to raise the acid levels in the soil they decompose in. This will not cause a problem for your plants as long as you regularly test the soil (which should be done anyway to make sure nutrients are balanced) and treat the soil if the acid levels get too high.

Here is information on treating high acid in soil:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/lower-acid-soil.htm

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