Answer: There are only 2 or 3 reasons for unopened buds to fall - environmental stress, which is possible with your newly planted rose, and bud worms. Carefully inspect the unopened buds and look for a tiny hole. If you see none, cut the rose bud in half with a knife and check to make sure the petals are all there and have not been chewed. If the flowers look okay and there are no exit holes in the sepals, then the problem is environmental/cultural. Just give your new rose another few weeks to adjust and it should have the energy to open those beautiful flower buds. Best wishes with your roses!
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