Forcing Hyacinth Bulbs Indoors: Fragrant Spring Flowers in Winter

Botanical Name: Hyacinthus orientalis hybrids

You can find hyacinth flowers in florist shops mid-winter. More enjoyable to force bulbs yourself and watch them grow—and it's so easy.

Each bulb produces a thick flower stem carrying dozens of small, waxy flowers. Hyacinth is highly fragrant in stunning shades of blue, violet-blue, red, orange, pink, yellow, white. Narrow, upright leaves surround stems.

Naturally spring-flowering, hyacinth bulbs are easy to force into mid-winter bloom. Forcing tricks bulbs into behaving as if they've had a cold winter, then brought into warmth and sun as if spring.

Hyacinth bulbs need a cold treatment for 12 weeks to bloom. If you bought pre-chilled bulbs, skip this step.

Start cold process anytime in fall. October is good for mid-winter blooms. If many bulbs, plant a few at a time, keeping the rest cold until ready—you'll have pots (or vases) in bloom throughout winter and early spring.

Forcing Hyacinth Bulbs - Step by Step

1. Choose a shallow pot (at least 3 in / 7 cm deep) with drainage holes. Fill loosely with potting mix. Set bulbs side by side—close but not touching—pointed end up. Set tips even with pot rim. Don't press into mix; keep loose for root growth. Cover with additional mix, leaving tips exposed.


2. Water thoroughly and discard drainage.


3. Move pot to a dark, cool (40°F / 4°C), non-freezing location—basement, unheated garage, or refrigerator. Avoid storing near ripening fruit/vegetables (ethylene gas damages bulbs). Keep in cold storage ~12 weeks. Keep medium barely moist.


4. When shoots reach ~2 in (5 cm) tall, bring pot out of cold storage into a slightly warmer (50°F / 10°C) location with low light. Increase watering, keeping soil evenly moist. Over several days, gradually move toward a sunny window. Turn pot daily for even growth. When in full bloom, keep hyacinth in bright light out of direct sun to prolong bloom.

Want to grow hyacinth bulbs in vases instead?

Hourglass-shaped hyacinth vases hold the bulb while growing.

Keep vase bottom filled with water, but don't let bulb sit in water—it will rot.

Still needs chilling as above. Keep bulbs in paper sack during cold treatment. When sprouting, bring out and place in vases. Set vases in bright, cool location.

Hyacinth Care Quick Reference

Origin: Turkey

Height: 8–12 in (20–30 cm). Flower heads get heavy—may need staking.

Light: Dark during cold treatment (cover pot if needed). After shoots appear, move to bright light as directed.

Water: Keep soil evenly moist

Humidity: Average room humidity

Temperature: Cool, 45–65°F (7–18°C)

Soil: Any good potting mix. Hyacinths can also be grown in water.

Fertilizer: Not necessary

Propagation: Forced hyacinth bulbs won't bloom a second time indoors. They produce offsets for outdoor planting. If keeping, allow foliage to die back naturally, cut back. Store offset bulbs cool and dry. Plant in garden in fall.