color loss in the flowers

My rosebush(zone 5)all summer (first rose 6/20/07) had roses that were yellow centered with pink to red edges. The last rose was white (12/20/07), also the first rose this spring is also white (5/2/08).My rosebush was wintered in the house, it stayed outside til mid Oct. It did go dormant (stoped growing but didn't lose leaves, I also watered less).It had been fed Miracle grow, used coffee grounds & ground egg shells.How can I get the beautiful colors back? It is growing well in all other ways.
Submitted by BHGPhotoContest

I'm tempted to blame the color change on the lower light your rose would've been exposed to in December. Although you say your rose did go through dormancy indoors, it would've been better to plant it in the ground and protect it with a heavy layer of mulch during the winter months. Switch to a slow-release granular fertilizer applied once each spring, rather than the quick-release water-soluble fertilizer.


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