Cosmos atrosanguineus

Chocolate Cosmos

Cosmos atrosanguineus (Chocolate Cosmos) is a tuberous perennial with divided leaves and velvety, maroon-red blooms carrying a rich chocolate fragrance. Flowering from June to September, it thrives in full sun and provides excellent material for cutting. Loved for its scent and colour, it brings warmth to Irish summer borders.

Flowering Months

Jan J

Feb F

Mar M

Apr A

May M

Jun J

Jul J

Aug A

Sep S

Oct O

Nov N

Dec D

Size

Max Height

0.5 m — 1.0 m

Max Spread

0.1 m — 0.5 m

Growth Habit

Widely extends outward with many lateral branches from center.

Planting Position

Sunlight i Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.

Full Sun

Aspect i Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.

South East West

Exposure i Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.

Exposed / Sheltered

Hardiness i Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.

(−5 to +1 °C) Half-hardy

Ideal Soil Conditions

Soil Type i Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.

Chalk Loam Sand

Soil Moisture i Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.

Moist but permeable / Free draining

Soil pH i Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.

Acid Alkaline Neutral

Plant Uses & Merits

Uses

Patios / Courtyards
Flower Borders

Merits

Fragrant
Generally pest-free
Good for Cut Flowers

Cosmos atrosanguineus

Chocolate Cosmos

Your cart

Cosmos atrosanguineus

Menu

Legal Links

Choose options