As a rule of thumb, most perenials need to be trimmed in the fall.( Just before they go dormant in the winter.)
After flowering.
Bushe can be trimmed in spring or summer
If they flower in the Spring prune immediately after flowering.If they flower after mid-summer prune in early Spring
The usual answer is immediately after they have flowered. If you prune them more than once a year they are called a hedge.
spring is the best time to transplant lilac bushes,
You trim them after they finish blooming - late spring, early summer - so that the new growth and next year's blooms have time to develop during the winter.
October to March is the best time to transplant your rasberry bushes.
You can trim a holly at any time of year.
spring, on a cool day.
The Two Bushes
what time of the year,do you trim fire bushes.Now in the fall or in the spring?
1870