Road Accessibility - For wholesale operations, good access to the interstate highway system can improve delivery of supplies and shipping of plants. A fairly level site with a 1% - 2% slope reduces site preparation costs. Topography - A site that has a gentle slope to the south increases solar gain and provides drainage of rain and runoff. Shelter belts to the north can provide wind protection and energy conservation. Orientation - Good solar access is needed throughout the day and year to get enough light energy for photosynthesis. Tests should be conducted to evaluate water quality for suspended sediments, pH, electrical conductivity, total dissolved solids, alkalinity and hardness. Generally a supply of 0.3 gallons/day/sq ft of growing space is adequate. Water supply should be adequate to meet peak load demands. Quality water - The amount of water needed depends on many factors including climate, irrigation system used and crops grown. Availability of additional vacant land adjacent to the site is desirable for expansion as the business grows. The following are considerations for site selection listed in a general priority of importance.Īdequate land - A minimum of 2 acres is needed to allow for facilities, outdoor growing area, access, parking and buffers. It can also be used when planning the expansion of an existing business. This information sheet outlines the major requirements and factors that should be considered by someone contemplating starting a small greenhouse operation for the production of annuals, potted plants, vegetables, nursery stock, perennials, herbs or other specialized crops.
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