Plant this collection in fall, before the ground freezes, so the bulbs get the cold period they need to bloom. Aim for roughly 6 weeks ahead of your first hard freeze.
Unboxing
- Open right away. Remove the bulbs from the shipping box and check that they are firm and dry.
- Store cool and dark. If you cannot plant immediately, keep bulbs in a well-ventilated spot at 50-60 degrees F, never sealed in plastic.
Planting
- Pick your spot. Choose a site with full sun to partial shade and soil that drains freely. Bulbs rot in standing water.
- Loosen the bed. Work the top 8-10 inches of soil and mix in compost if your ground is heavy clay.
- Set the depth. Plant each bulb about 4-6 inches deep, or roughly three times its height, pointed end up.
- Space them out. Leave 3-6 inches between bulbs and scatter the varieties in loose drifts rather than straight rows for a natural Dutch look.
- Backfill and water. Cover, firm the soil gently, and water once deeply to settle everything in.
- Mulch. Add 2 inches of mulch to moderate soil temperature over winter.
Watering
- Fall soak. One deep watering at planting is usually enough to trigger root growth.
- Spring moisture. Keep soil evenly moist while foliage and flowers are active, about 1 inch of water per week including rain.
- Summer dry rest. Once foliage yellows, stop supplemental watering and let the bulbs go dormant.
Feeding
- At planting. Mix a balanced bulb fertilizer or bone meal into the planting hole.
- Each spring. Scatter a light application of balanced granular fertilizer as shoots emerge.
Aftercare
- Deadhead spent blooms. Snip off faded flowers so energy goes back into the bulb instead of seed.
- Leave the leaves. Let foliage yellow and die back naturally for at least 6 weeks before removing it.
- Divide as needed. If clumps get crowded and bloom less after several years, lift and separate them after foliage dies back.