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Here's an article that might help - http://www.gardenersnet.com/flower/hyacinthbean.htm
Here is all how to to do it: http://www.gardenersnet.com/flower/hyacinthbean.htm
Germinating Seed Indoors. While sowing in place is preferred, hyacinth beans can be started indoors at the same temperature six to eight weeks before your area's predicted last frost date. Sow seeds 2 inches deep in biodegradable pots that decrease root disturbance when planted.