Step 1 : Working in layers, plant bulbs in a container filled with coarse potting soil, ensuring that no bulb is planted directly above another bulb. Plant the tallest flowers deepest in the pot, and move up with shorter and shorter varieties. Cover each neck with 1 inch of soil. Water.
Step 2 : Place the container in a cool area -- approximately 50 to 60 degrees -- for one to two weeks, until fully rooted. Reduce temperature to 35 to 45 degrees for 12 to 16 weeks.
Step 3 : Check pots biweekly, and water lightly if the soil appears dry.
Step 4 : When sprouts form, bring the container into the forcing environment, usually a sunny spot in your home. As flowers bloom, continue to water them as you would any houseplant. Once spring arrives, it's safe to transfer them outdoors.