Boxtrees Nursery

Dahlia 'Bishop of Llandaff' and Dahlia 'David Howard', which was originally a seedling from a Bishop of Llandaff plant, are superb flowering plants for a hot coloured border in July to October.

Dahlia plants are killed by frost. The tubers are generally dug up in the autumn and over wintered in dry peat in a frost free shed. The tubers are then potted up in Spring and planted out after frosts have passed. If the dahlia plant is grown in a container, then the container can be placed in a dry frost free shed in winter.

In the warm sheltered locations in the milder parts of the UK, it seems that the tubers may be able to be over-wintered in the ground in mild winters, especially if the soil is covered during cold spells.