DIY heater for the greenhouse! Inside the terracotta pots is a big pillar candle, the rocks on top heat up and generate and retain a lot of heat inside the greenhouse. Makes 10 Things Nobody Tells You About Air Plants Gardenista Dwarf Alberta Spruce Bonsai Tree(picea glauca conica) Garden Tools Set, 10 PCS Heavy Duty Gardening Tools Includes Hand Trowel Rake Weeder Pruner, Gardening Gifts for Women, Garden Kit with Tote Bag, Apron, Gloves, Kneeling Pad Michaels Slickblue 6 Tier Plastic Modular Plant Stand Storage Shelves for Living Room and Kitchen Home Office Rectangle 39 H x 43 W Black Gray White in the Plant Stands department at Lowes.com Mystic Rainbow (albertiana x arequitae)