Dahlia 'Offshore Dream' (D) (Dahlia) — Bushy, clump-forming, tuberous perennial

Overview

Dahlia 'Offshore Dream' (D) is a bushy, clump-forming, tuberous perennial bedding in the genus Dahlia, part of the Asteraceae family, with green, occasionally dark-leaved foliage. Dahlia 'Offshore Dream' (D) 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 'Offshore Dream' is a clump-forming, tuberous herbaceous perennial dahlia that provides a long flowering run from July to October. It is grown for bedding and as a cut-flower producer. The plant carries green foliage that can be darker on some selections. Plant where it receives full sun on neutral loam kept moist but well drained, in a sheltered, south-facing spot.

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

In the garden

Dahlia 'Offshore Dream' belongs to the Asteraceae family and is sold primarily as a bedding herbaceous perennial with tuberous roots. As a cultivated dahlia, it forms clumps of well-branched stems and is used where regular summer and autumn bloom is wanted, supplying flowers from July to October. Give it full sun on neutral loam that drains freely yet retains some moisture. A south-facing, sheltered site suits it best; exposure to wind should be minimised to protect flower stems. In UK terms its hardiness is H4 — average — so plan for mild winter protection where exposure or frost is more severe. The foliage is normally green and may be darker on certain plants. Use Dahlia 'Offshore Dream' in mixed borders, large containers or as a source of cut flowers; stems cut during the July–October period will extend its presence indoors. Place plants where their flowering run will be visible from seating areas or where regular cutting is convenient, since the flowering span is the cultivar’s primary garden asset.