The zones in the U.S. are classified on the basis of their temperatures in winter. The maps of these zones presume that all the other factors that are needed for the growth and development of plants like number of days without frosts, soil quality, water supply, sunlight, etc are perfectly ideal. The coldest of winter temperatures in zone 5 may reach anywhere between -20 to -10 F. There are very few plants that can survive in these temperatures.

Organic gardening is the process in which gardening is carried on by using all-natural methods to grow and harvest vegetables. An organic garden utilizes the latest trends in green living and recycling. Organic gardening involves avoiding chemical fertilizers and pesticides. Thus, setting up organic garden reduces the environment impact and also cuts down the costs in relation to food and waste management. Hence, it is an eco-friendly gardening. Here are a few tips on creating an organic garden –

A walled garden, as the name suggests is a garden enclosed by high walls. This is done for horticultural purposes rather than security. Garden walls also serve the purpose of decoration, but their main function in zone 5 is to protect the garden from frost as well as from wind. However, if there is a small space available for gardening, then you can opt for small walled garden. Even if you have a small space, you can create an enclosed garden which can be made colorful by mixing varieties of flowers, shrubs and other attractive plants.

Roof Gardens are the gardens which are on the roof of a building. Roof gardening is carried on by urban dwellers who have very little or no space for gardening. Hence, roof gardens help a lot and besides having decorative benefits, the roof plantings also provide food (if fruits and vegetables are grown), temperature control, architectural enhancements, hydrological benefits and recreational opportunities.