Hydrangea Plants
Q.

Hydrangeas

Zone Houston, Texas | Anonymous added on September 2, 2017 | Answered

What causes brown spots on the leaves? Also, last year the blooms were at least twice as big as this year. What might cause this?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on September 3, 2017

Some hydrangeas vary the size of their flowers based on how they were pruned the year before or based on conditions. See this article to determine how to prune your hydrangea for optimum flowering:

ucanr.edu/datastoreFiles/268-86.pdf

There are several disease that can cause brown spots on hydrangea leaves. This article provides an identification guide:

http://www.aces.edu/pubs/docs/A/ANR-1212/ANR-1212.pdf

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