Cosmos ‘Cupcakes White’

Cosmos bipinnatus

Features

  • Cut-and-come-again
  • Easy to grow
  • Heat-loving
  • Pollinator-friendly

Description

The petals on this fun cosmos are all fused together, forming a crisp, clean white teacup. Flowers are as big as the palm of your hand, and the edges look like they have been cut with pinking shears. Planted en masse, blossoms glow on a sea of green foliage. A wonderful addition to the cutting garden or flower border and one of the easiest and most productive cut flowers per square foot you can grow.

Details

Plant type: annual
Height: 40 to 48 in
Site: full sun
Days to maturity: 90 to 100 days
Plant spacing: 12 in
Pinch: when 8 to 12 in tall

Seed Sowing & Growing Notes

Start seed indoors in trays 4 to 6 weeks before last frost; transplant out after all danger of frost has passed. Cosmos can also be direct-seeded once the weather has warmed.

Harvesting/Vase Life

Harvest when buds are just cracking, but haven’t fully opened. For double varieties, let open halfway before picking. Expect a vase life of 5 to 6 days.

Details

Description

The petals on this fun cosmos are all fused together, forming a crisp, clean white teacup. Flowers are as big as the palm of your hand, and the edges look like they have been cut with pinking shears. Planted en masse, blossoms glow on a sea of green foliage. A wonderful addition to the cutting garden or flower border and one of the easiest and most productive cut flowers per square foot you can grow.

Details

Plant type: annual
Height: 40 to 48 in
Site: full sun
Days to maturity: 90 to 100 days
Plant spacing: 12 in
Pinch: when 8 to 12 in tall

Seed Sowing & Growing Notes

Start seed indoors in trays 4 to 6 weeks before last frost; transplant out after all danger of frost has passed. Cosmos can also be direct-seeded once the weather has warmed.

Harvesting/Vase Life

Harvest when buds are just cracking, but haven’t fully opened. For double varieties, let open halfway before picking. Expect a vase life of 5 to 6 days.

Sources

How to Grow

Seed-Saving Mini Course

Learn how to save seed from zinnia, dahlia, and celosia

In our upcoming free, three-part video series, you’ll learn everything you need to know to save seeds on a home scale, including how plants are pollinated and isolation techniques to ensure varieties come back true, how to tell when plants are ready to pick and how to harvest the seeds, and how to properly dry, clean, and store seeds long term.