New
Cosmos Seeds 'Brightness Mix'
Cosmos Seeds 'Brightness Mix' Cosmos Seeds 'Brightness Mix' Cosmos Seeds 'Brightness Mix' Cosmos Seeds 'Brightness Mix'
Cosmos Seeds 'Brightness Mix'
Cosmos Seeds 'Brightness Mix'
Cosmos Seeds 'Brightness Mix'
Cosmos Seeds 'Brightness Mix'
Cosmos Seeds 'Brightness Mix'

1 / 5

Cosmos Seeds 'Brightness Mix'

Cosmos sulphuerus

Cosmos ‘Brightness Mix’ lights up the garden with masses of daisy-like flowers in glowing shades of yellow, orange, and red. Fast-growing and free-flowering, these cheerful blooms thrive in beds, borders, and containers, attracting pollinators all summer long.

Marshalls Garden

10 Seeds

30211326

In stock

£2.99

3-5 Working Days Seed Delivery | Learn More

3-5 Working Days Seed Delivery

Seed Only orders £2.99 delivery

To ensure your seeds arrive in the freshest condition and undamaged, they are carefully packed in specially designed, fully recyclable packaging.

Key Features

Marshalls Garden

Low Maintenance

Marshalls Garden

Pollinator Friendly

Marshalls Garden

Great As Cut Flowers

Product Information

Eventual Height:

30 cm

Position:

Full Sun

Suitable for:

Borders, Pots, Small Gardens, Cottage Garden, Cut Flower Garden, Wildlife Garden

Plant Type:

Annual

Soil Type:

Well-drained, sandy, chalky or loamy

Complete The Job

Growing Calendar

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sow Indoors

Sow Indoors

Flowering

Flowering
  • Vibrant mix of yellow, orange and red blooms
  • Flowers freely all summer into autumn
  • Perfect for beds, borders, and containers

Cosmos ‘Brightness Mix’ is a dazzling variety that produces a sea of fiery-coloured blooms, creating instant impact in any garden. Their ferny foliage and upright habit make them perfect for filling gaps in borders or adding bursts of colour to pots and containers.

Easy to grow from seed and fast to flower, these cosmos thrive in sunny spots with minimal care, rewarding you with continuous blooms until the first frosts. Pollinator-friendly and excellent for cutting, they’re a versatile choice for gardeners wanting long-lasting colour and energy in their displays.

Why Marshalls Garden

We are more than just a team; we are your gardening experts, dedicated to providing valuable guidance and support for all your gardening endeavours.


Discover our wide range of gardening guides developed over 75 years, showcasing our commitment to gardening.


Contact us Mon – Fri and even on bank holidays (because gardening queries don't follow a calendar), to discuss our product range or chat about all things gardening.


When you order from us, expect promptness. 'In stock' plants and seeds are dispatched within two working days. And because we're as green as our thumbs, all our packaging is recyclable.


Our trustworthiness isn't just us talking. It's thousands of five-star reviews on Trustpilot and a 100% happiness guarantee on all our products. We're not just here to sell, we're here to sow trust.

Reviews

You Might Also Like