Green house kits are versatile options for both professional and amateur gardeners. Different gardeners use green house kits for different purposes such as raising plants to be used during winter while others prefer to get an earlier start with planting high maintenance plants. Yet others may want to hold over better their existing plants for immediate use the following season. Whatever the purpose for choosing green house kits, certain designs of green house kits will favor different purposes. Some gardeners favor custom structures, but most people opt for green house kits that already put together. Selecting the correct green house kits and correctly setting them up is important. The desired plants to be maintained within these green house kits is the first consideration to make, as the species and its required space, typical life span and climate information will have to be correlated. This information assists in the determination of eventual green house functions, at the different periods throughout the year. Once these factors are formed, compare these to the climate of the region. The growing of plants, especially tropical plants in cold climate areas takes a lot more work as compared to their growth in warmer climes. Different green house kits provide different control potentials, thus the importance of this information. The space required by these plants is also an important consideration when purchasing green house kits. The basic rule is to select a size that is slightly larger than the space required by the plants, allowing room for cultivation plan changes. This is also required because of adequate ventilation, as overheating is a leading cause of plant death, even more than cold temperatures. Light sources are crucial factors in green house kits placements, especially winter light. Changes in light angles as the year progresses also affect placement of green house kits placements. Shading should be avoided, to let in enough light. Ideal summer time conditions are vastly different when compared to ideal winter situations, which means that portable green house kits should be at least considered. Another scenario where portable green house kits may be better than permanent green house kits is if great terrain changes are expected in the near future. For example, if construction is planned next or adjacent to the location, portable green house kits would offer greater flexibility. The materials that make up the structure's construction should also be carefully considered. Other green house kits are constructed from tubing of PVC material, which most gardeners find more cost effective. Steel and aluminum green house kits are more expensive but are more durable. Additional purchases linked to these kits should be tabulated within the costs of setting up green house kits, as some of them come with just the frame, meaning that all the interior facets of the green house will have to be purchased separately. Other green house kits come as a complete package, with interior components such as shelving included. Alterations such as drilling and other modifications can also drive up the final set up and purchase prices of these green house kits.