Every serious gardener dreams of getting a jump on the growing season. Cold frames and mini-greenhouses can offer a lot of help by creating ideal environments for getting seedlings started outdoors before the first frost by keeping things warm, but a full blown greenhouse can be productive all year long.
The closed environment of a greenhouse protects crops temperature extremes, shields plants from dust storms and blizzards, and helps to keep out pests. It the spring time, transplants that were started months before will be ready and anxious to move into larger living quarters. Naturally, greenhouses have different factors to contend with than growing outdoors. Extremes of heat and humidity have to be controlled, and irrigation is necessary to provide water. You will be the master of all the elements your plants need to thrive and survive, making for a fantastic growing season when spring finally arrives.