This question was submitted by Debbie. Researched and answered by Advanced Master Gardener Darlene.
My “Bigleaf” hydrangeas did not bloom at all this year.; Abracadabra,,Quick Fire, Cityline. Nothing but leaves. Last year, I did not trim after Fall. This Spring I let them come up on their new wood , as usual & nothing. Previously, they were beautiful. Your thoughts, please. Thank you.
Photo Credit Missouri Botanical Garden
Bigleaf hydrangeas, especially Abracadabra and Cityline, bloom on old wood. Do not trim these after August 1. They should be trimmed after they bloom. However, Quick Fire blooms on new wood in the spring, so it can be trimmed one third its length in the early spring or right after it blooms. These hydrangeas need 4 to 6 hours of sun and bloom best with 6 hours or more. They need moist, well-drained soil. Be sure they get 1-2 inches of water each week. Fertilize in the spring and late summer with a 10-10-10 fertilizer. It can take 3 or 4 years for this plant to get established and bloom. It may need some protection from harsh winters. We did have a late frost this past spring which could have cause the plant to lose its flowering buds.
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