We’re used to thinking of lavender as a flower, but lavender is a perennial, woody herb in the mint family. Like all perennial plants, pruning is essential to keep the plant healthy and maintain a good shape. Lavender in particular has a tendency to get leggy when not pruned. Not only does this not look as attractive, the more leggy the plant, eventually sections will start to split and break. This is especially true for lavender planted in zones that get heavy snowfall. The weight of the snow can break and split leggy branches, damaging lavender that doesn’t have a tight, compact base.