Unopened Buds on Rosebush - Knowledgebase Question

Overton, NV
Avatar for scafconcom
Question by scafconcom
April 15, 1998
My two-year-old rose bush has several fully matured buds that will not open, and I see no evidence of insects. Could the drastic fluctuations in our weather pattern the last two months be the cause?

Answer from NGA
April 15, 1998
Your guess is a good one. This condition is most likely a physiological problem that occurs following alternating dry and wet weather, mild temperatures and cold spells. Poor nutrition can also contribute to this "balling". Red roses are especially susceptible. Give your rose some extra care by mulching the soil well to reduce soil temperature fluctuations and feeding with a high potash complete fertilizer, or phosphate rock and greensand. I hope these suggestions are helpful.

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