Answer
When should I plant bulbs?
Spring bulbs in autumn (tulips late autumn); summer bulbs in spring after frost.
In short
Plant spring-flowering bulbs such as daffodils, crocus and tulips in autumn, with tulips best left until late autumn. Summer-flowering bulbs such as dahlias and lilies go in during spring once the frost risk passes. Planting at the right time is what gives the best display.
Arrange a consultation
Send a few photographs and a sentence about the site. We will reply personally.