my poor rhodies

busymomma22(6)March 21, 2012

I have 3 rhododendrons in my backyard, where its only partly sunny and they look awful. I have owned this property almost 7 years and they have never bloomed, and barely grown. They have large broad leaves with good color, but never have flower buds. Can I save them? What do I do with them? I have a very small area with full sun, maybe I should just swap them out for shade plants? Anyone need 3 unknown breed of rhodie?

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rhodyman(SE PA, USDA Z6)

They do need several hours, say 3 hours, of sun on the average in early summer to set flower buds. The other possibility is that they may be setting buds and squirrels or deer may be eating them.

The healthy leaves may indicate they have been getting fertilizer. Fertilizer makes nice healthy green leaves but suppresses flower bud production. They set flower buds in late spring or early summer for the next season. So pruning after they have started producing flower buds will remove the buds.

Dry conditions in the late spring and early summer will prevent flower bud formation. But don't over water, that can kill them.

They can be easily moved to a more sunny location. Or the shade can be lessened by pruning the branches that are causing the shade. Rhododendrons like what is called "high shade". If lower branches are pruned back, then perhaps enough sun will penetrate. Any changes will have to be done before late spring since that is when flower bud production begins.

    Bookmark   March 25, 2012 at 12:43PM
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