In selecting a site for planting, consider light, temperature, soil texture, and function. Most bulbs need full sun. Select a planting site that will provide at least 5 to 6 hours of direct sunlight a day. Bulbs left in the ground year after year should have 8 to 10 hours of daily sunlight for good flowering. Bulbs planted in a southern exposure near a building or wall will bloom earlier than bulbs planted in a northern exposure.
Adequate drainage is an important consideration.
Most bulbs and bulb-like plants will not tolerate poor drainage, and rot easily if planted in wet areas. Function must also be kept in mind. If bulbs are being used to naturalize an area, toss the bulbs then plant them where they fall to create a scattered effect. Spanish squills will do beautifully along with daffodils to achieve a natural effect. Good drainage is the most important single factor for successful bulb growing.