Tulips, treasured bulbs from Turkey, welcome spring around the world. These members of the Lily family are more varied, versatile and vigorous than gardeners realize and can be early, late, fragrant, fringed, ruffled, striped, double, lily-form, multicolored, festive, formal, and from 4” to 30” tall.
When & Where to Plant Tulips
Tulip bulbs are planted in fall in USDA hardiness zones 7 and below. In Zone 8 and higher plant bulbs in late December or January for spring bloom providing bulbs have been chilled at 40-45°F (a refrigerator works well) for 10 weeks prior to planting.
Light: Tulips grow best in full sun in the North and partial shade in the South.
Soil: Plant tulip bulbs, pointed end up, in well-drained soil with a pH between 6 and 7. Add compost to improve sandy soils and poorly draining clay soils.
Spacing: Plant bulbs 4-6” apart.
Planting: The general rule of thumb is to plant bulbs three times as deep as the bulb’s length. Traditionally, tulips are planted 6-8” deep. Those who favor deep planting at 12”, claim there is less chance of sprouting in fall, damage by cold air and soil, being heaved up by freezing and thawing, or being eaten by animals. Southern gardeners may prefer to plant their bulbs at a more shallow depth, to take advantage of the exposure to cool air that occurs closer to the soil's surface.