Hi all,
My roses are budding up but turning brownish and not blooming. Can someone enlighten me as to whats going on? These roses are very special to me as I've grown them from cuttings of my mom's plants and she has passed away.
I truly appreciate in advance any help!
Robyn
robbyTX - I did a google search on "What causes Rose Buds to not open" and found the following - Frost damage - Gray Mold infection (Botrytis blight), Sap Thieving Thrips, as possible causes.
Did you have some very cold mornings that might have been at or below freezing? Not much you can do if there was a frost.
Do you see and fuzzy gray hairs on the buds or around the buds? This would be an indication of mold. You can go to the local garden store and find a fungicide to use for prevention of mold, but you will need to remove the infected buds and prune the bush back to encourage new growth and budding, that is if your bushes are repeat bloomers, then spray the fungicide to prevent the reaccurance of the mold.
Thrips are very hard to spot. The article says 25 thrips lined up end to end would only measure 1 inch, so you may need to use a magnifying glass to check for them. For thrips, again go to your local garden supply and see what type of insecticide you can find.
Another possability is that rainy damp weather can cause similar problems by slowing the growth and development of the bud to the point where the outer petals turn brown and papery keeping the bud from fully opening.
Good luck, and stay in there. It will be worth it to have those roses blooming.
