Get a Jump on the Growing Season (cont)
By: National Gardening Association Editors
Plant a Few Weeks Early
By placing a cold frame directly over a garden bed, you can plant seeds or set out transplants a few weeks before your usual planting time. In many regions, gardeners can grow cold-hardy greens, such as spinach, all winter long under their cold frames. Once the weather heats up, you'll need to remove the cold frame; otherwise, the sun will heat it up too much. In fall, replace the cold frame and enjoy greens and other cool-season vegetables right into winter.
Step Up to a Greenhouse
Cold frames are handy, but there's nothing like a freestanding greenhouse when it comes to getting a jump on the gardening season. Not only does a greenhouse offer more room, it also allows you to stand up while you tend your plants. You might be surprised at how affordable a portable greenhouse is.