Potentilla blooms like crazy when it's in flower, but like most perennials,
it doesn't flower throughout the summer. If you prune out the flowers on
some perennials, you can get a second bloom, though it's usually sparser and
smaller blooms than the first time around.

Off the top of my head, I can't think of anything perennial that reliably
blooms throughout the summer, other than some roses.

What zone are you in, by the way??

Suzy O, Zone 5, Wisconsin

"Ben Tuinman" wrote in message
. ..
We have one in our garden, with mixed results from year to year. Its
blooms
are white, and it seems to flower in abundance early in the season .
However, in previous years it stops blooming after its first display, with
only an occasional flower showing here and there....How should I care for
this attractive shrub in order for it to bloom throughout the summer. We
are
in zone 5, and the shrub is in a semi sunny location. Right now it is in
full bloom, but I fear for a repeat performance. Much obliged ! Ben