Coffee wrote:

Is there any thing I can do to keep the clematis in bloom during the summer?
It blooms great late spring then seems to fall back mid summer(eastern PA)
Patty

Various clematis types and species have different bloom periods, so there is not
a great deal you can do to encourage them to bloom when they are out of season.
OTOH, there are a number of late spring blooming clematis that will offer
periodic rebloom throughout the summer - 'Nelly Moser' for example. If you prune
the plant back lightly after the first flush of bloom, fertilize and keep well
watered, you should be rewarded with additional summer flowering. The summer
bloom flush is usually not as prolific as the spring bloom, however.

pam - gardengal