Choose one of these easy-to-follow greenhouse designs and make your own indoor conservatory where plants can grow and flourish.

Given that greenhouses can cost as much as $25,000, only the wealthiest cold-climate gardeners can afford to keep their plants happy year-round. Unless, that is, you build the greenhouse yourself.

Greenhouses, sometimes referred to as glass houses, hothouses, or conservatories, are sanctuaries where temperature and lighting conditions are ideal for plants to grow, regardless of the outdoor ...