"Mike built a cute little greenhouse and we filled it that first year with little tomato starts and they sold really easily," Christine Wellington said. "At that time, ...

At Greenhouse Megastore, we found kits priced at about $21 per square foot (for a 6 ft. x 8 ft. polycarbonate greenhouse with no base), $48 per sq. ft. for a 94-sq.-ft. foot model with a ...