In this section, you will find the growing methods in use, the growing techniques, crop protection, disease control and variety choice of tulips, hyacinths and narcissus.

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6.4 Greenhouse environment Throughout the season, cut hyacinths are grown at a greenhouse temperature of 18-20uC to obtain as much length as possible. The greenhouse period, lasting ± 20 to ± 10 days, depends on the depth and temperature of the substrate layer at the time of housing. Water regularly during forcing to keep the planting medium at a normal moisture level. If the planting medium consists entirely or partially of sand, care must be taken to avoid drying out. Regular checks for moisture level should never be neglected.