Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to trim shrubs [title] Examine your shrub for blooms to determine when you should trim it. [step] For blooming shrubs, trim them in the winter when they're dormant to prevent stunting flower growth. You can trim non-flowering shrubs anytime except late autumn when any new growth the plant has after trimming won't have time to mature before it goes dormant.

Ending1: [title] Remove branches that droop or cause discoloration when pruning shrubs. [step] If a branch falls out of shape or shows signs of rot, it's likely because of neglect. Ending2: [substeps] If you're growing a hedge, trim it when the branches look overgrown until about 6 weeks before your area's usual first frost. Avoid doing extensive trimming when it is not your shrub's trimming season. Ending3: [substeps] You can cut lateral growth in the late winter or early spring to extend the blooming season, but cutting branches that are too short will not promote new growth. [title] Cut mature branches just before pruning has dried. Ending4: [substeps] If you're concerned about the blooming of a shrub, wait until mid-fall to achieve this final trim. [title] Remove branches that're threatening to split in half.

Answer format: ending1/ending2/ending3/ending4