Plants can use up to five times more CO2 than naturally occurs in the air. CO2, essential to photosynthesis, is often the most overlooked element limiting plant growth. This book demonstrates how fertilizing the air with CO2 can shorten growing time and double your harvest. Includes technical information on how to set up a CO2 emitter system or generator system and how to grow cuttings and seedlings with CO2. Packed with the most up-to-date facts and figures on CO2, Gardening Indoors With CO2 shows you how to put CO2 to work in your garden room or greenhouse for super results! Soft cover 96 pages.