Flowering: From June to July. Height: Up to 60cm (24in). Product: Get these Allium 'Medusa' 7cm Potted Plant - 3 Sizes today! Perfect: For adding height, volume and colour into your garden. Ideal: For gravel gardens, summer containers or at the front of borders. Care: For best results, position in the full sun. Spread: Up to 10cm (4in). Allium 'medusa' 7Cm Potted Plant | Living Social