Cooling

"PRECOOLED" bulbs have been cooled for six weeks prior to shipping to customer.  The bulbs will need an additional 8 weeks of cooling at 35-45⁰F after planting.

Forcing Hyacinth in Water

Place the hyacinth bulb, with a vase filled with water just to the base of the bulb, in a cool dark (40-55⁰) location for about 4-8 weeks, or until root system has developed and growth from the top of the bulb is observed. When top growth is about 2" and the root growth is to the bottom of the vase, move bulb to a warmer, brighter (50-60⁰F) location. Bulbs should remain in this location until shoots turn green. Bulbs then can be moved to a warmer location (65⁰F) for full bloom. Avoid direct sunlight.

Forcing Hyacinth in Soil

To successfully grow flower bulbs for pot or cut, a minimum of 14 weeks of cooling (45 - 48°F) is needed. Upon arrival, bulbs will need to grow for three additional weeks at 55 - 58° F to initiate the root system.  After root initiation, bring temperature down to 41 - 45° F and continue growing for another eight weeks, then bring into greenhouse and force at 65° F for approximately four weeks.