- Nature never intended for bulbs to loll about above ground, so don't delay planting the bulbs after purchase.
- Plant tulip bulbs in the fall, 6 to 8 weeks before a hard frost is expected and when soils are below 60 degrees F. (See our frost charts.) This timing ranges from early autumn (Zone 4) to late autumn (warmer zones).
- In southern climates with mild winters, you need to buy pre-chilled bulbs or chill them yourself in the refrigerator for about 12 weeks before planting.
- Tulips prefer a site with full or afternoon sun. In Zones 7 and 8, choose a shady site or one with morning sun only.
- All tulips dislike excessive moisture. Ideally, the soil is well-drained, neutral to slightly acidic, fertile, and dry or sandy.
- Rainy summers, irrigation systems, and wet soil are death to tulips. Never deliberately water a bulb bed. Wet soil leads to fungus and disease and can rot bulbs. Add shredded pine bark, sand, or anything to foster swift drainage.
- You'll want to space bulbs 4 to 6 inches apart, so choose an appropriate plot size.
- To deter mice and moles—if they have been a problem—put holly or any other thorny leaves in the planting holes. Some gardeners use kitty litter or crushed gravel.
- If ravenous rodents are a real problem, you may need to take stronger measures, such as planting bulbs in a cage of wire.
- Plant bulbs deep—at least 8 inches, measuring from the base of the bulb. And that means digging even deeper, to loosen the soil and allow for drainage, or creating raised beds. Remember, the bigger the bulb, the deeper the hole it needs.
- Set the bulb in the hole with the pointy end up. Cover with soil and press soil firmly.
- Water bulbs right after planting. Although they can't bear wet feet, bulbs need water to trigger growth.
- If you're planning to raise perennial tulips, feed them when you plant them in the fall. Bulbs are their own complete storage system and contain all of the nutrients they need for one year. Use organic material, compost, or a balanced time-release bulb food.
- Water tulips during dry spells in the fall; otherwise, do not water.
- Compost annually.
- Deadhead tulips after flowering.
- Allow the foliage to yellow for about 6 weeks after flowering before removing it.
- The bulbs of Species tulips may be left in the ground for several years; others may be lifted annually, once the leaves have died down, and ripened in a warm, dry place.
- Replant the largest bulbs; smaller bulbs may be grown in containers in a bulb frame, in mix of equal parts loam, leaf mold, and sharp sand. When in growth, water moderately, applying a balanced liquid fertilizer weekly for 3 or 4 weeks after flowering; keep dry in summer, and repot annually.