Darwin Hybrid tulips are planted in fall and bloom the following spring. Unpack your bulbs as soon as they arrive and keep them cool, dry, and out of direct sun until planting day.
Planting
- Pick your timing. Plant in fall, once night temperatures cool consistently and before the ground freezes.
- Choose the site. Give them full sun to partial shade and soil that drains freely; standing water is the main cause of bulb rot.
- Dig to depth. Set bulbs 6-8 inches deep, pointed tip facing up.
- Space for impact. Place bulbs 3-6 inches apart in clusters or drifts rather than single rows for the fullest look.
- Backfill and water. Cover with soil, firm gently, and water once to settle the bed.
Watering
- After planting. One deep watering is enough; fall rain usually handles the rest.
- During growth. Keep soil lightly moist as shoots emerge in spring, about 1 inch of water per week.
- After bloom. Taper off watering as foliage yellows so the bulbs can go dormant dry.
Feeding
- At planting. Mix a bulb fertilizer or bone meal into the bottom of the planting hole.
- Each spring. Scatter a balanced granular fertilizer as shoots break ground to help build next year's flower.
After Bloom Care
- Deadhead only. Remove the spent flower head and leave the stem in place.
- Let foliage ripen. Allow leaves to mature and die down naturally before removing them; this recharges the bulb.
- Mulch lightly. A 2-inch mulch layer moderates soil temperature and keeps beds tidy.
Container Planting
- Use a deep pot. Choose a container at least 10-12 inches deep with drainage holes.
- Layer the bulbs. Set them close together, tips up, in well-draining potting mix.
- Overwinter cold. In zones 3-6, move pots to an unheated garage or shelter so bulbs get their chill without freezing solid in soggy soil.