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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1.5 Delaying flowering in trays Ice tulips are planted in trays in November, where they remain to root for 2 to 4 weeks at 9°C. After the rooting phase, the trays are frozen and stored at -1.5 to -2°C. In order to prevent trays from drying out, they are usually wrapped in plastic. From september, trays are generally placed in the greenhouse or in a cool place outside where the bulbs are to flower. A limited range of tulips is forced into flower in autumn in this manner. Unfortunately, both the flower and the keeping quality of these tulips leave a lot to be desired. We will therefore not go into detail of this technique in this book.