Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to repot a cactus [title] Know when to repot. [step] For most cacti species, you will need to repot the plant once its roots begin to show through the drainage holes of your pot or once the crown of the cactus reaches the edge of the pot. [substeps] This will usually occur every two to four years.

Ending1: If you have a cactus with no roots, you are likely to repot it more frequently. Repot after the root of the cactus has fully regrown and the plant still has roots attached to the stems. Ending2: This is the season where most cacti reach maturity, but if you live in cooler climates, you may need to repot once a year. If you don't care about replanting, you can repot during may. Ending3: Repot your cactus during the dry season, usually in late winter or early spring. Roots may break during the process, and moisture can cause those broken roots to rot. Ending4: This is only necessary for a cactus that has been repotted a wide range of times. If you're repotting more than once, stop when the cactus reaches a limit of two or three years and repot it once it reaches that limit.

Answer format: ending1/ending2/ending3/ending4