hydrangea - Knowledgebase Question

Saugerties, Ne
Question by haraloacres
July 1, 2009
I have a hydrangea plant that is 10 years old. it gets great foliage but few if any flowers. What can I do to increase it's flower output?

Answer from NGA
July 1, 2009


If your hydrangea has bloomed in the past but won't bloom now it may not be getting as much sunlight as it was getting in the past. Trees and shrubs can grow and block sunshine so check to make sure your plant is getting at least 4 hours of morning sun a day. If your hydrangea has never bloomed, it could be a big leaf hydrangea (Hydrangea macrophylla) which blooms on new shoots that develop on old wood. If the plant regularly dies down to the ground each winter, there will be no old wood and therefore no flowers. A better choice for your area is Endless Summer. Endless Summer is a perpetual flowering big-leaf Hydrangea that blooms virtually all season long. And because Endless Summer can flower repeatedly on new wood, you can be confident that regardless of whether the plant dies back to the crown or is trimmed at the wrong time, you'll still get wonderful flowers that grow all season. What makes Endless Summer even more appealing is that it is remarkably hardy, even to Zone 4. What's more it's proven to be more mildew resistant than other macrophylla varieties. You won't be disappointed if your replace your non-blooming hydrangea with an Endless Summer!

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