The Q&A Archives: hydrangea

Question: I have two hydrangea plants and neither of them bloom. I have them about three years. They were blooming when i got them. I don't know what i am doing wrong.

Answer: The most common causes for non-blooming in hydrangea are 1) lack of sufficient sunshine and 2) wrong cultivar for your growing region. Hydrangeas need about 4 hours of morning sun and prefer some protection from hot afternoon sun. Without morning sun, no flowers will develop. Big leaf hydrangeas (hydrangea macrophylla) produce flowers on new shoots which develop from old wood. If your plant routinely freezes down to ground level each winter, or if you prune it back hard each year, there will be no old wood on which new flowering shoots can appear. In this case, you'll want to replace them with a type that blooms on both old and new wood. Endless Summer is one such hydrangea and grows wonderfully well in your gardening zone. Hope this information helps you determine just why your hydrangeas are not blooming!

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