Environment Harmony: The Greenhouse Environment as it Affects Pot Roses and Other Indoor Ornamentals
Several years ago Rainbow Park Nurseries decided to grow indoor potted roses. The challenge was to produce a living bouquet of flowers. We began in our existing fiberglass clad greenhouse, equipped with gull-wing ridge vents. These provided only 15% of the floor area as venting. The house had fixed shading and an external sprayon coating to take the heat out of summer. Heating was provided by gas-fired hot air and supplementary high intensity discharge (HID) lighting was available as needed. Benching was fixed with capillary matting, but mainly overhead hand watering and liquid feeding was required. The house also had low gutter and roof height.
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