- Plant hyacinth bulbs in autum.
- Plant the bulbs 4 inches deep and a minimum of 3 inches apart. At the northern limits of their hardiness, plant 6 to 8 inches deep.
- Grow in any well-drained, moderately fertile soil in sun or partial shade.
- Loosen soil and work in compost or bonemeal for fertility.
- Set the bulb in the hole with the pointy end up.
- After planting and covering with soil, water thoroughly.
- If you are transplanting, water sparingly and then do not water again until flower buds appear the following year.
- Bulbs may be forced into early growth for indoor display in winter. Plant them with the tips just showing, in soil-based potting mix in containers with drainage holes.
- Keep in a dark place at temperatures above freezing but no higher than 45 degrees F, for at least 10 weeks to allow roots to develop.
- When shoots are about 1 inch long, increase light and temperature gradually.
- Water carefully, avoiding wetting the shoots or waterlogging the soil.
- After flowering, forced hyacinths may be planted in the garden and they will flower again in subsequent years.
- Water hyacinths in the event of a dry autumn.
- Protect container-grown plants from excessive winter moisture.
- After plants are finished flowering in spring, cut back flower stalks but allow the leaves to die back naturally.