Can you leave bulbs in the ground all year?Updated 8 months ago

Hardy perennial bulbs can be left in the ground all year round and many species will start to naturalise after a few years. After flowering, allow the foliage to die back naturally. Once it has turned completely yellow, the old foliage and stems can be trimmed away. Spring-flowering bulbs, such as daffodils and tulips, can be left in the ground throughout their dormant period in summer. Often, tulips (short-lived perennials which don't always return for a second year) are lifted and stored over summer. It is thought that lifting tulip bulbs for summer increases their chances of flowering again the next year, although this may not be the case, but it may help prevent fungal diseases. 

Bulbs which are not fully hardy should be lifted in autumn and stored over winter in cool, dry and frost free conditions - they can be re-planted in spring in frost-free conditions.