Overview

Cosmos bipinnatus 'Diablo' (d) is a upright annual biennial in the genus Cosmos, part of the Asteraceae family, with feathery foliage. Cosmos bipinnatus 'Diablo' (d) grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H3. Suggested uses include cut flowers.

About

Cosmos bipinnatus, commonly called the garden cosmos, Mexican aster or cosmea, is a medium-sized flowering herbaceous plant in the daisy family Asteraceae, native to the Americas. The species and its varieties and cultivars are popular as ornamental plants in temperate climate gardens.

About the genus

Cosmos is a genus, with the same common name of cosmos, consisting of flowering plants in the daisy family.

Wikipedia contributors, "Cosmos (plant)", CC BY-SA 4.0Cosmos (plant)

Growing conditions

Best soil and position for Cosmos

Sunlight
Full sun
Soil type
Loam
Soil pH
Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing
Exposure
Exposed
UK hardiness
H3

Plant details

Cosmos bipinnatus 'Diablo' (d) size, habit and characteristics

Plant type
Annual Biennial
Habit
Upright
Foliage
Feathery
Suggested uses
Cut flowers

Care notes

Pruning and caring for Cosmos bipinnatus 'Diablo' (d)

Propagation
Seed
Pest resistance
Generally pest-free
Disease resistance
May be susceptible to grey moulds

Frequently asked questions

Where is the best place to plant Cosmos bipinnatus 'Diablo' (d)?

Cosmos bipinnatus 'Diablo' (d) prefers full sun. It suits exposed positions.

What soil does Cosmos bipinnatus 'Diablo' (d) need?

Cosmos bipinnatus 'Diablo' (d) grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist but well-drained.

Is Cosmos bipinnatus 'Diablo' (d) hardy in the UK?

Cosmos bipinnatus 'Diablo' (d) has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.

How do I propagate Cosmos bipinnatus 'Diablo' (d)?

Seed.

More in the Cosmos genus

Browse all Cosmos