64K views · 6.2K reactions | How to layer spring bulbs Always start with the latest flowering spring bulbs, that’s your alliums and late flowering irises. These should be around 6-10 inches deep. Then your mid season bulbs. Muscari, daffodils and hyacinths at a depth of about 4-6 inches. Then your early flowering bulbs like Crocus, Winter aconite and Snow drops at about 2-4 inches deep. #gardening | The Michael Griffiths | Facebook