Cut flower

Dahlia

Tubers throw blooms from July till frost — pick weekly and they keep coming.

Sun

Full sun

Water

Regular

Soil

Rich, well-drained

Difficulty

Medium

Container

Yes

Edible part

Ornamental

Lifecycle

Perennial

Hardiness

Half-hardy

cut-flowersummertuber

Plants well with

Where to source

Get growing in United Kingdom

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Thompson & Morgan

Stocks UK-bred dahlia seed varieties selected for shorter seasons and reliable flowering in London's temperate climate.

Crocus

Offers deep pots essential for dahlia tubers and established plants needing substantial root space year-round.

Amazon UK

Provides dahlia-specific tools like dibbers and stakes for planting tubers and supporting tall varieties in London gardens.