Alphabetical Plant Listing

Cosmos sulphureus 'Cosmic Red'

Yellow Cosmos, Orange Cosmos, Sulphur Cosmos


Cosmos sulphureus 'Cosmic Red' is a compact, half-hardy annual boasting semi-double, vibrant scarlet double flowers, up to 2 inches across (5 cm). Blooming for months from early summer to fall, the cheerful blossoms are borne atop sturdy stems and float above the fresh, fern-like foliage. Fairly pest-free and low maintenance, add this charming plant to the landscape, and you will be rewarded with abundant butterflies. Creating a graceful visual impact in the garden, it is perfect for sunny borders or containers. Excellent as cut flowers.

  • Growing up to 24 in. tall (60 cm) and 18 in. wide
  • Performs best in full sun, in average, moist, well-drained soils. Tolerates poor soil, heat, and humidity.
  • An ideal addition to beds and borders, containers, cottage gardens, prairies and meadows, and cutting gardens.
  • keep an eye out for aphids, slugs, and gray molds.
  • Propagate by seeds.
  • Pinching off dead blossoms will promote continuous blooming. If the flower heads remain, the cosmos will self-seed, but will not become a nuisance.

Cosmos: Plant Care and Growing Guide

Here are some tips on how to plant and grow cosmos successfullyRead More

Not sure which Cosmos to pick?
Compare All Cosmos

Buy Cosmos sulphureus 'Cosmic Red'

Requirements

Hardiness 2 – 11
Heat Zones 1 – 12
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Annuals
Plant Family Cosmos
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" (30cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Tolerance Drought, Dry Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Cutting Garden, Informal and Cottage, Traditional Garden

Buy Plants

Great Plant Combination Ideas with Cosmos

Guides with Cosmos


Shutterstock

While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.


Requirements

Hardiness 2 – 11
Heat Zones 1 – 12
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Annuals
Plant Family Cosmos
Exposure Full Sun
Season of Interest Summer (Early,Mid,Late)
Fall
Height 1' – 2' (30cm – 60cm)
Spread 1' – 2' (30cm – 60cm)
Spacing 12" (30cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy
Tolerance Drought, Dry Soil
Attracts Butterflies, Hummingbirds
Garden Uses Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Cutting Garden, Informal and Cottage, Traditional Garden

Great Plant Combination Ideas with Cosmos

Guides with Cosmos

Plant Calculator

How many Cosmos sulphureus 'Cosmic Red' do I need for my garden?

%
ft
ft

Your Shopping List

Plant Quantity
Cosmos sulphureus 'Cosmic Red'

Find your Hardiness Zone

Find your Climate Zone

Find your Heat Zone

Join Gardenia.net

Create a membership account to save your garden designs and to view them on any device.

Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

Join now and start creating your dream garden!

Create a New Collection

Optional. For your reference.


Move Selected Plants to a Different Collection


Delete Collection

This field is required.

Rename Collection

This field is required.