Rose buds - Knowledgebase Question

richmond, Te
Question by ssumeraa
May 13, 2008
Hi,

I have planted david austin roses in my flower bed. I have a couple of concerns. First, I have noticed that a lot of the buds fail to develop completely, and open prematurely, what could be the cause of this problem, I have fertilized my roses with vigoro rose food. Secondly, I throw the beads of fertilizer on the surface, does it need to be mixed into the soil for best results? Third, I am confused about when the rose bushes need to be watered, because i water all my perennials twice every week. I appreciate your help in advance.


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Answer from NGA
May 13, 2008

0

Sumera,

The rose blooms may be suffering from some type of blight. This is usually temporary but there are a number of fungicides labeled for use on roses which may be helpful, especially during rainy periods.

Your roses will benefit from being fertilized about every 6 weeks or so during the growing season. A little less often is fine if they are vigorous and blooming well. You can scratch the fertilizer into the surface inch or two with a rake and then water it in well. Water the roses as needed since sunlight, soil type, temperature, etc. all dramatically affect how often you need to water. In general terms once or twice a week should suffice when it has not rained.

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