One of the true joys of gardening on a miserable winter day is to enjoy the fragrance and beauty of a pot of hyacinths you forced yourself. The easiest spring bulbs to force include: hyacinth, jonquil, daffodil, crocus, grape hyacinth, freesia and many varieties of tulip. Choose the largest size bulbs available. Place the bulbs in a pot so they almost touch. Plant with their tips just above the soil surface. Use a good light potting mix or special bulb mix with some lime and slow release plant food added.
A little charcoal spread over the bottom of the pot will help purify the soil and keep it from turning sour. Soak the pots then place in a dark, very cool and damp spot. This could be under dense trees and shrubs or buried underground in a specially marked bed of sand or gravel. Keep moist. Leave in this position for at least 8-10 weeks, 12-14 weeks for tulips. By then roots should be poking through the drainage holes and tiny shoots showing above.
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