Winter Growing: Heating Greenhouses

If you have a greenhouse, you should probably think about getting a heater to keep your plants thriving during the winter months. It is also important to select a suitable heating system and to ensure that there is adequate ventilation.

Greenhouses are wonderful places, especially in the spring when benches are filled with brilliant green starts, and in the summer, its doors and roof vents propped open, with cucumbers trailing from the ceiling and tomatoes ready for picking. But in winter? Not so much. Overwintering herbs and potted plants cluster together for warmth. A few brown, leafless cucumber vines hang from an overhead trellis. Kale and spinach are over-picked and the seeds you planted have yet to sprout.



It’s a winter-time fact in most parts of the country: greenhouses, even those that might be attached to the house or garage, need some kind of heat source (of course, supplying appropriate light is equally important). My first, only partially realized, greenhouse up in the rain forests of Washington’s Olympic Peninsula needed heating just to keep the humidity down. But in most parts of the country, cold is the problem. You may have built your greenhouse with visions of supplying your family fresh, year-’round greens. But winter growth and germination are difficult when soil temperatures seldom climb out of the low 50 degree level. Sure you can use a heating mat to encourage germination. But even the hardiest green grows slowly — very slowly — when nighttime air temperatures plunge.

The germination mat is one kind of way to bring the temperatures you need to your greenhouse. There are as many ways of heating your greenhouse as there are greenhouses, and some of the new energy-conscious heating techniques (fuel is expensive!) are promising if not proven.

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Backyard Greenhouse Gardening


The principles of purchasing greenhouse plans you bear in mind, never put aside, is the Golden rules that apply. Like stars to guide us, they sparkle splendidly, keeping us on course and always going into a good direction. Once you determine your objectives, begin searching for the Golden Rules that connect with it. Monitor your course by these Golden Rules and allow them to teach you to good results and success.

Rule # 1, Determine your goal in regards to what your greenhouse is for. After that, you can decide on a type of greenhouse to purchase. You’ll be able to make your own greenhouse from scratch, though it might take you a lot of time and frustration. It usually is much easier to buy a greenhouse kit, which can be readily available for purchase online and through catalogs. A kit could make the method easier, and in certain cases, less expensive.

Rule # 2, Your selection of covering material must be considered because it relates to economic investment and appropriateness. It’s also crucial that you consider how much it’ll cost you to irrigate the greenhouse. How far the structure is from the home will dictate this since the further away it is the more involved it will be to setup the proper watering system.

Rule # 3, Find out the accessories you need in your greenhouse. Most greenhouses being used outdoors will need some type of shade cloth that could be added in the hottest summer season. Cooling fans are another option for cooling a larger greenhouse. Sometimes a fan system will come with a greenhouse kit, or may be added on later when necessary. Auto-venting systems are also available in some greenhouse units.

Rule # 4, In some cases, the area of the country you live in will have its own set of regulations and guidelines in relation to building a structure like this. Provide your plan for them to help and advice you on your project. You may need to acquire permits and show conformity with building guidelines, particularly if your greenhouse is to be categorized as a permanent structure.

Rule # 5, Its also wise to search for kits that come with some type of warranty that will cover the expense of damage to your greenhouse kit not less than up to one year. Some firms provide a warranty for about twenty years. You must get a warranty which includes any damage, breakage, and/or defects. This will put you at ease if you know that you’ll have somebody to call on to when something happens.

Prior to starting purchasing, make sure to do some online research, particularly for price and feature comparison reasons. Go through the tips above to find the best greenhouse for your home.