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Fuzzy White Clumps on Hydrangeas #672543

Asked August 03, 2020, 7:09 PM EDT

Trying to figure out the mystery of what these fuzzy white clumps are on my hydrangeas. Any ideas?

Kent County Michigan

Expert Response

No idea. It does not appear to be anything related to a fungus, bacteria or insect.

Erwin 'Duke' Elsner, Ph.D. Replied August 04, 2020, 8:36 AM EDT

I’ve come to realize these are Guttation Droplets that have dried and crystallized in either a sugar or salt form.

We have had very high humidity and my daughter has been overwatering the plant creating perfect conditions for this symptom.

The Question Asker Replied August 04, 2020, 2:07 PM EDT

Good job on figuring that out. Thanks for letting me know about it.

Erwin 'Duke' Elsner, Ph.D. Replied August 04, 2020, 2:39 PM EDT