Dahlia pinnata from Colombia — Bushy, clump-forming, tuberous perennial

Overview

Dahlia pinnata from Colombia is a bushy, clump-forming, tuberous perennial bedding in the genus Dahlia, part of the Asteraceae family, with green, occasionally dark-leaved foliage. Dahlia pinnata from Colombia grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include borders, containers and cut flowers.

About

Dahlia pinnata is a perennial plant from the genus Dahlia, known for its tuberous roots and finely dissected leaves. This bushy, clump-forming cultivar thrives in full sun on moist but well-drained loam soil with a neutral pH. It is hardy to UK zone H4 and is best grown in sheltered, south-facing positions. Suitable for borders, containers, and cut flowers, Dahlia pinnata flowers in spring and benefits from propagation by division, cuttings, or seed.

About the genus

Dahlias come from the high meadows of Mexico, and somewhere in that heritage is the explanation for how they behave here: tender to frost, hungry, generous beyond all reason. No other plant gives you quite so much for so little. One tuber, planted after the last frost, becomes a shrub's worth of flowers by August — and the more you cut, the more they come.The range is faintly ridiculous. Tight pompoms, spiky cactus types, singles the bees adore, dinner-plates the size of your face. Whatever your garden's mood, there is a dahlia that agrees with it, which is probably why every generation falls out of love with them and then, a decade later, falls straight back in.They're at their best when much of the garden is winding down — late summer into autumn, flowering hard until the first frost calls time. I think of them as the encore. And they always play it.

Written by Henry