Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to prune bamboo [title] Prune once a year in late summer or early fall to minimize spreading. [step] Although bamboo has a rapid growth rate, you only need to prune it once a year if you do a really thorough job. Pruning your bamboo more frequently can actually cause it to send off more shoots.

Ending1: This may sound creepy, but give it a break after it reaches the height of maturity. [title] Consider cutting back your bamboo once a year to preserve new stalks. Ending2: [substeps] You can trim bamboo about once a year if you haven't already pruned it to give your bamboo more roots. You should cut back twice a year to avoid overregrowing your bamboo. Ending3: Long branching canes can get cuttings quicker than longer reaching canes because the stalks bend to additional sunlight. Prune as much as possible every other year. Ending4: Mark on your calendar when to start pruning and coordinate it with fertilizing. [title] Cut down weak or dead canes in the spring to keep your plants healthy.

Answer format: ending1/ending2/ending3/ending4