Hyacinthus is the botanical name for the plant more commonly known as garden hyacinth. It is a welcome sight in early spring, a promise that warm weather will soon arrive. Hyacinths have four to six thin leaves that splay apart to make room for the large, incredibly fragrant blooms that develop in the plant's center. The blooms are available in many colors, including white, purple, blue and orange. Hyacinths do best when planted in full sun or partial shade and well-drained soil. The bulbs should be planted in autumn, after the soil temperature drops to 60 degrees F.
Loosen the soil to a depth of 15 inches using a garden fork. Add a 2- to 4-inch layer of organic compost.
Dig a hole that is 5 to 6 inches deep. Plant the hyacinth bulb with the pointed end turned upward. If you are unsure about which end should be up, plant the bulb sideways. Water until the soil feels moist, but not wet.
Water anytime the top inch of soil feels dry during the growing season. Stop watering completely in late fall to allow the bulbs to become dormant.
Fertilize once in spring and again in fall with a general purpose fertilizer.
Clip off the flower stalks after the blooms have faded. Add a 3- to 4-inch layer of organic mulch in late fall to protect the bulbs during the winter.