The LAS Greenhouse offers many opportunities for learning also. Greenhouse gardening is different than gardening outdoors. Greenhouse gardeners learn the fine points of growing plants from seed in a controlled environment, grafting, transplanting, pruning at important intervals, and insect control. The LAS Greenhouse Gardeners go into a high production phase starting in mid-January to begin producing plants for the Arboretum, the Kaleidoscope Garden, various community locations and the Annual Plant Sale held in early May.