Hydrangeas and general - Knowledgebase Question

Sweet Home, OR (Zone 7B)
Avatar for Ashburn1971
Question by Ashburn1971
May 29, 2007
Hello, I have just bought a home and I am a beginner at gardening. Hydrangea question: How fast do they grow? When do they start blooming if they are smaller plants, and how should I find out if my soil here is acidic or alkaline? Thank You Trinity

Answer from NGA
May 29, 2007
Hydrangeas grow best in morning sun and afternoon shade. They will begin to bloom when they are 2-3 years old. Hydrangeas bloom on new wood which is produced on old wood so each winter or early spring you'll want to prune your hydrangea back, leaving 12-18" of old wood on the plant. In the spring new shoots will develop on this old wood and each new shoot should produce a flower. In your gardening region the soil is generally acidic so your hydrangea will produce blue flowers.

Hope this answers all your questions!

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