Preferred for herbs, vegetables or other annuals intended for quick turnaround from seeding to transplanting. The #3 square is great for step up transplants to larger planting containers or direct transplants to ground post frost. This pot is particularly well suited for getting a jump start on cucurbits. Many competitive giant pumpkin growers discovered our pots to give them the leading advantage! Once planted, the #3 square stays intact for up to 3 months in a greenhouse setting. If not planted and kept in a cool dry location, shelf life is indefinite.