As a general guide, after your seeds germinate they can grow in smaller (1. 5 cell trays ) for about 2-3 weeks, in larger 2 trays they can grow in them for about 3-4 weeks before needing to be transplanted. If out of season or just fragile by nature, nurturing seedlings to maturity can be a difficult feat. Loosen and amend soil. “this helps prevent transplant shock caused by sudden temperature changes and keeps the soil from drying out too quickly,” says weiss. · find out how and when to transplant starter trays of seedlings into bigger pots so they continue to develop properly. · then, you generally need to wait until your seedlings are large enough to handle (no less than an inch in height) and have formed their second set of leaves before transplanting them, either individually or spaced 2in apart, into larger pots or trays filled with multipurpose or potting compost. Remove any rocks or roots of weeds. · when the weather looks like it’s improving, start getting your garden ready for transplanting into the soil! Spring and early summer are often best. · the best time to transplant seedlings is in the morning on a cloudy day. Plus get tips for planting them outdoors when theyre ready. Your garden soil may have become compacted over winter, so loosen and aerate the soil before planting. · early morning or late afternoon are ideal times to minimize stress on the seedlings, as temperatures are cooler. Consider the season too; Keep an eye on the weather forecast to avoid transplanting before a storm or heatwave. · starting seedlings indoors gives you a jump-start, but determining when to transplant seedlings from seed trays will take knowing your plants.
