Cut flower

Dahlia (Collarette)

Dahlia × hybrida (Collarette)

Single petals with a ruffled inner collar — pollinator-friendly dahlia.

Sun

Full sun

Water

Regular

Soil

Rich, well-drained

Difficulty

Medium

Container

Yes

Edible part

Ornamental

Lifecycle

Perennial

Hardiness

Half-hardy

cut-flowerpollinatorsummer

Plants well with

Where to source

Get growing in United Kingdom

Some links may earn us a small commission — at no cost to you.

Thompson & Morgan

Stock UK-reliable collarette dahlia seed varieties bred for shorter growing seasons north of London.

Crocus

Stock large terracotta pots essential for container-grown dahlias in London's cool, wet summers.

Amazon UK

Source quality dibbers and garden knives for precise dahlia tuber planting in London's clay soils.