When to plant Hyacinth?

Plant hyacinth bulbs between September and November, ideally in October when soil temperatures have cooled but before the first hard frosts arrive. Choose a spot in full sun or partial shade—hyacinths tolerate light dappling but flower most vigorously with at least four to five hours of direct sunlight daily. The site must have good drainage; waterlogged soil will rot the bulbs over winter. Prepare the soil by digging in some horticultural grit or sharp sand if your ground is heavy clay, or incorporate well-rotted compost if it's very light and sandy. Hyacinths prefer loam or sandy soil with a neutral to slightly alkaline pH. Avoid freshly manured beds, which can encourage fungal disease. Plant each bulb 10–15 cm deep, measured from the base of the bulb to the soil surface. The pointed growing tip should face upwards. Space bulbs 15 cm apart to allow for their eventual spread of 8–12 cm and to ensure good air circulation, which helps prevent botrytis. For a natural look in borders, plant in informal groups of five or seven; for containers or formal bedding, arrange them in tight clusters for maximum impact. After planting, firm the soil gently and water in if conditions are dry, though autumn rains usually provide enough moisture. Apply a 5 cm layer of well-rotted compost or leaf mould as mulch to suppress weeds and insulate the bulbs through winter. No staking is needed for these sturdy, compact plants. The bulbs will root during autumn and winter, then send up foliage and flower spikes in early spring.