Muscari armeniacum

These hardy spring bulbs prefer well-drained soil in full sun to partial shade. The best time to plant grape hyacinth bulbs is in autumn, place them 10cm (4in) deep and 5-7cm (2-3in) apart. After flowering, allow the foliage to die back naturally, as this replenishes the bulb's energy for next year's display. An annual feed with a good general-purpose fertiliser (like Vitax Q4) in autumn will help keep the bulbs healthy. During summer when the bulbs are dormant, lift, divide and replant mature groups that are becoming congested.

In containers, plant Muscari more densely for an abundant show, using a well-draining potting mix. Ensure good drainage and consider moving pots to a sheltered spot during summer dormancy to prevent waterlogging from heavy rains or irrigation equipment.