Transplants that have been raised indoors are soft, and must get used to sun, wind and rain. It is best to let them “harden off” gradually for several days before planting in the garden.
Move the trays of transplants outdoors to a sheltered, shady place out of the wind. Keep them well watered. If they wilt anyway, bring them back inside until they perk up again. Be sure to bring them back indoors in the evening.
After two days, leaves and stems should be stronger. Move transplants to a half-sun location for 2 more days. When they are tough enough to go through the day without wilting, it’s time to plant them in the garden or container.