The best time to trim a potentilla, and any other summer-flowering shrub, is in the spring before the potentilla buds out.
Yes, you should trim bushes
It is not advisable to trim bushes in frosty weather.
After flowering.
Potentilla hickmanii was created in 1900.
Potentilla angelliae was created in 1987.
Potentilla cottamii was created in 1987.
Potentilla basaltica was created in 1984.
Potentilla recta was created in 1753.
Potentilla cristae was created in 1990.
To effectively trim bushes into shapes for a more appealing garden, use sharp and clean pruning tools, plan the desired shape beforehand, and trim gradually to avoid overcutting. Regular maintenance and shaping will help bushes grow into the desired form over time.
To keep your viburnum bushes healthy and well-maintained, trim them in late winter or early spring before new growth begins. Remove dead or diseased branches, and shape the bushes by cutting back about one-third of the oldest branches. Avoid over-pruning, as this can weaken the plant.