New Petals Falling Off Rugosa - Knowledgebase Question

Brampton, ON
Question by Charlotte_Sa
June 4, 2000
My rosa rugosa is one year old and had two flowers whose petals fell off in less than a week. Also, the leaves have tiny red spots on them? What can I do? It is planted in full sun and I've fed it in the Spring.


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Answer from NGA
June 4, 2000

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The blooms on roses will last longer under ideal weather conditions (cool, cloudy but dry, not windy) but may fall quickly if the weather does not cooperate. A lack of soil moisture or excessive heat can cause them to fall rather quickly. The tiny red spots may be rust, a fungal problem. You might try removing the infected leaves and spraying with a neem-based product according to the label instructions to try to control it. Also, make sure the rose is in a location with good air circulation and avoid overhead watering, especially in the evening.

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