Royal Navy, highly scented dark blue double flowers, with a small purple line at their hearts, green stems with a purple flush at the top. it's the only double hyacinth we do as quite a few had too heavy flower heads to stand up on their own. It has the RHS Award of garden merit. Looks fantastic in the garden or in a pot on the patio where you can benefit from its stunning perfume. ht 20-30 cm needs well-drained soil in full sun - part shade. soils that waterlog will make them rot