If you're going to be using your greenhouse during winter in a cold-climate area, you'll undoubtedly need to have a heating system in place. You may need to insulate your greenhouse to help keep your plants warm. While a lot of sunlight may come in during the day, an uninsulated greenhouse cools off quickly at night.
Good insulation is essential to keeping utility costs reasonable if you're going to be heating your greenhouse during the winter months. A well-fitting greenhouse cover is essential for keeping valuable warm air inside. If you're only using your greenhouse in the winter to provide protection for a few plants, partition their area off so you'll only be heating the part of the structure that you're actually using.
Watering systems for home greenhouses range from simple to fairly complex, but most fall somewhere in between. For a small greenhouse, you'll be able to get away with a watering can and a hand-held spritzing bottle for mixing. The next step up is a simple garden hose with a removable misting attachment. However, these quickly become impractical in larger greenhouse environments.
Drip irrigation systems are recommended for those planning on growing large amounts of plants in their home greenhouses. This system reduces the amount of water that evaporates, resulting in a less humid greenhouse environment. This means you'll have less mold and mildew spores to deal with as well as a lower water bill.
If you're planning to do seed propagation in your greenhouse, you may want to invest in an overhead misting system. Smart technology is available that allows you to program the mister to come on at certain times, and you can also use it to regulate your watering schedule.