Cosmos Seeds
Tall pink and white blooms that wave in the breeze.
$2.25
CAD
In StockSeeds per pack
~15
Days to maturity
~60
Difficulty
Easy
Sun
Full Sun, Partial Sun
About these seeds
Cosmos shoots up fast — sometimes head-height by mid-summer — with delicate ferny leaves and big, bright flowers in pink, white, and magenta. They bloom in around 60 days from direct seeding and don't slow down until frost. Plant them at the back of a bed for movement and colour, and watch the bees move in.
When should you plant Cosmos?
Your planting dates depend on where you live. Sign up to unlock dates personalized to your location.
Your Cosmos Planting Window
Start planting
May 15, 2026
Last chance
Sep 10, 2026
Free Growing Guide
How to grow Cosmos from seed
Step-by-step planting, care, and harvesting — written for absolute beginners. Personalized to your climate when you sign up.
Read the Cosmos growing guide
