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Vegetables can be cultivated any time of year when you utilize greenhouse vegetable gardening methods. Growing vegetables greenhouse style is just about identical to producing them from a garden outside in the summertime. You only have to supplement what nature provides that a greenhouse can’t.

There are two different techniques of using a portable greenhouse. One is called the cold greenhouse method and that is when only the sun during the day gives the greenhouse its heat. The temperature at night usually goes down to about 45 degrees at the coldest and heat does kick on when it gets very cold outside. No growing occurs in this kind of greenhouse, but you can maintain many plants that will come back in the summer such as rosemary.

Greenhouse vegetables need to have heat and the second technique, the warm greenhouse system, should be used if this is the case. This method will require more financial outlay because the temperature can’t fall below 55 degrees F. A heating system has to be installed into your garden greenhouse. You can use a propane, electric or gas heater.

Most veggies can be raised in a greenhouse. There are several types of each vegetable that are available in plants developed explicitly for greenhouse growing. Look in seed catalogs to find those types. You want to look for types that will grow in cooler temperatures than usual. You also want to find kinds that are more compact since room is at a minimum in a greenhouse.

Among the things you need to give your greenhouse vegetables apart from heat is pollination. You will not find any bees or other insects in your greenhouse that you would in the outdoors. A great example is cultivating tomatoes. Tie tomatoes to bamboo stakes and once the flowers appear tap the stakes once in the morning and once at night. Do this when you see that the flower petals are curving backwards. You must watch daily because you only have a three day window of time that the flower petals will do this.

You will need to supplement sunlight during the wintertime too so plan on supplying grow lights in a winter greenhouse. Plants generally need 8 hours of sunlight per day. You will also have to supply water and fertilizer regularly.

Growing vegetables in a greenhouse in the winter may be a little more challenging and time consuming, but the results can be astounding. Just think of going out to the greenhouse mid January and plucking a tomato right off the vine. You’ll have a small taste of summer in the dead of wintertime.

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