Cosmos Seashells Mixed (Cosmos bipinnatus) – pink fluted petals with yellow centre

Cosmos Seashells Mixed

£2.30
Skip to product information
Cosmos Seashells Mixed (Cosmos bipinnatus) – pink fluted petals with yellow centre
Beginner friendly

Cosmos Seashells Mixed

Cosmos bipinnatus 'Seashells Mixed'

2 reviews

Cosmos with tubular fluted petals rolled into perfect seashells — a Fleuroselect Novelty Winner in pink, white, carmine and bicolour. Architectural conversation piece.

£2.30

Free UK delivery on seed orders over £40

Dispatched from our Norfolk farm by Royal Mail, usually within one working day.

Your growing year

Sow, plant out and flowering months for this variety

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sow
Plant out
In flower
SowPlant outIn flower

At a glance

Height
90–120cm
Spread
45–60cm spread
Spacing
45–60cm
Position
Full sun
Colour
Mixed
Seeds per packet
100
Soil
Average to lean, well-drained; tolerates poor soils
Grow guide How to grow Cosmos Seashells Mixed Read the full guide →

About this variety

Every petal rolled into a tube, so the flower reads as a ring of small trumpets or shells radiating from the gold centre. It is a stable genetic quirk rather than a trick of breeding, and it won a Fleuroselect Novelty award for it. Visitors always stop and ask.

The mix gives soft pink, white, deep carmine and bicolours, all quilled, on tall plants at 100 to 120cm. In an arrangement the tubular petals bring a three-dimensional quality that a flat daisy cannot, which makes it more interesting in a modern vase than a traditional one.

Be prepared for some inconsistency. Not every flower quills fully. A proportion open half-rolled or nearly flat, particularly early in the season and on plants that have had a check, and it settles down as they mature. Unlike the fully double cosmos the centre is left open here, so bees can still use it. Lean soil, full sun, no feeding, and keep cutting to keep it flowering to the frosts.

Plant alongside

Chosen by us, not by an algorithm

  • 5 stars: 2 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
L
Lisa Mennone
Fab all

Fab all round