A. Several factors affect rose bloom. The first
is sunlight. Although there are a few antique roses that accept
some shade, most roses want full sunlight. You may also have an
ill-adapted variety. Antique or old roses do very well here.
There are also many hybrid teas that perform reliably.
Visit one of the many good nurseries in town that generally stock
roses that will perform well in Central Texas. Another reason to
make a careful selection is to get a rose that doesn't succumb to
black spot or powdery mildew, which prevents the plants from processing
sugar to bloom.
Please see
the booklist for good rose books, including Liz Druitt's The
Organic Rose Garden, and Michael Shoup's Roses in the Southern
Garden. A final factor is nutrition. Make sure the roses have
a healthy soil, rich in compost, and provide feeding on a regular
basis.
Mulch your roses to maintain soil moisture, but leave
a slight berm around them. Finally, if you have roses that only
bloom in the springtime, do not prune them until after their final
flush. If you have these varieties and pruned in February, you sacrificed
this year's crop.
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