Caring for Hyacinth

Hyacinths are low-maintenance bulbs that need little intervention once established. Water moderately during active growth in spring, keeping the soil lightly moist but never sodden. In a typical British spring with regular rainfall, supplementary watering is rarely needed. If conditions turn dry during flowering, water at the base of the plants rather than overhead to avoid encouraging botrytis on the dense flower spikes. Once foliage begins to yellow in late spring, stop watering entirely; the bulbs need a dry summer dormancy. Feed once in March, just as shoots emerge, using a general-purpose granular fertiliser such as blood, fish and bone or a balanced NPK feed. Scatter it around the base of the plants and water in lightly. Avoid high-nitrogen feeds, which promote lush foliage at the expense of flowers. A light top-dressing of well-rotted compost in early spring also benefits soil structure and provides gentle, slow-release nutrients. Hyacinths are fully hardy in zones 4a–9b and need no winter protection in temperate Europe. Mulching in autumn helps suppress weeds and keeps soil temperatures stable, but isn't essential for survival. The main pest concern is narcissus bulb fly, whose larvae tunnel into bulbs; affected bulbs feel soft and fail to flower. Lift and destroy any suspect bulbs. Grey mould (botrytis) can affect flowers and foliage in damp springs—ensure good spacing and avoid overhead watering. Basal rot, a fungal disease, causes bulbs to soften and rot; it's usually the result of poor drainage or planting in overly wet soil. Lift and bin infected bulbs, and improve drainage before replanting.