Most bulbs are most attractive when planted in odd numbered groups like 3 or 5. Fill the remainder of the container until the bulb tips show just above the soil surface. Water containers thoroughly before putting them into cold storage and water regularly during the storage period. Placing containers inside plastic bags will help to conserve moisture. When working with flat sided bulbs such as tulips, plant the flat side of the bulb toward the sides of the container.
Many plants begin sending up shoots before the cold treatment is complete.
Be careful not to damage these shoots. If containers are stacked on top of one another, this is the time to arrange them in a single layer to prevent shoot damage. Following the appropriate length of cold storage, the potted bulbs are ready to force indoors. After a few days, place containers in a well-lighted location at normal room temperature to flower. Flowering usually occurs within a few weeks.