Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to prepare your yard for summer [title] Aerate your lawn to promote the healthy formation of the root system. [step] Aeration allows the grass to breathe, and also enables water and nutrients reach the root system more efficiently. Failure to aerate your lawn sufficiently will make it much more difficult for grass and plants to survive during the hottest part of the season.

Ending1: [substeps] Keep piles of snow along sidewalks and covered benches in your yard every day to promote new growth. Flush out the wool with water each day. Ending2: [substeps] Choose around ten percent of your lawn for aeration during the hotter months, and one percent for summer. For the rest of the fall months, you should aerate the grass around all of your buildings/spaces as well. Ending3: To aerate your lawn, find a local cemetery or garden center that has water and healthy plants. Using your action plan, aerate your lawn before the end of summer. Ending4: [substeps] Perform the process in the autumn if your lawn is a cool-season grass, like bluegrass or ryegrass. If you live in a climate where warm-season grasses thrive, aerate in early spring.

Answer format: ending1/ending2/ending3/ending4