DAHLIA

This daisy family genus consists of around 30 species of tuberous rooted perennials and sub-shrubs. They  have attractive foliage, with deep to bright green lobed leaves, hollow stems, and bold flower heads that, due to much cultivation, may vary greatly. Dahlias can be broadly divided into tall border plants  and low-growing bedding dahlias, though a more detailed classification sorts them into 10 groups based on the size and type of flower head this ranges from tiny  pompon to large giant flowered cactus types. Colors include shades of white and cream to bright yellow and deep red. Mostly native to Mexico, these flamboyant plants were originally cultivated by the Aztecs for their large edible roots.

Cultivation

Plant dahlias in sunny open position with fertile, free draining, humus-rich soil. In cold climates, where frozen or waterlogged soil is likely to occur, the tubers should be lifted and stored near-dry in a frost free place. Most species  can be propagated by dividing the tubers or by taking cuttings of young shoots.

Top Tip

When planting dahlias, select a site that is sheltered from strong winds. Even in a protected spot, dahlias will often need staking to prevent them falling over.