In England, the vines need to be pruned hard in the winter to keep them under control, as they will grow to great size if not cut back.

You will be concerned with what may be called the degree of pruning: do you prune hard, ruthlessly to ground level, or not so drastically?

Prune hard in late February, back to the lowest pair of buds on the stem, to encourage bushy growth in spring.

If they were long and floppy, and the growth pattern suggested a weeping willow, it may be that it is indeed B. alternifolia and should not be pruned hard.

Those who grow huge exhibition roses, prune hard; those who just like to have a show of color and fragrance in their gardens for summer, prune less harshly.

If pruned hard in the fall, dieback occurs close to the plant's crown, and you may lose the plant.

Plants can be pruned hard, and do best on a sandy slightly acid soil of pH 5.5-6.5.

The entire mess can be pruned hard just as the snow melts.

Buddleias should be pruned hard.

Pinch tips to encourage branching, but do not prune hard unless necessary for basic structure.