🇨🇦 100% Canadian Grown Seeds 🇨🇦 All orders will be processed in 3-5 business days

Due to the postal strike, orders shipped via Canada Post will not be sent until the strike is resolved. In the meantime, we will be offering alternative shipping options through Purolator.

Mammoth Sunflower
Mammoth Sunflower
Mammoth Sunflower

Mammoth Sunflower

Helianthus annuus

Regular price $4.45 $4.45 Sale

Mammoth Sunflower (Helianthus annuus) An impressive heirloom that can tower up to 10-12 feet over your garden. Gorgeous flower heads sought after by birds and kids! If you are thinking of planting a sunflower maze, this is your plant!

80-100 days to maturity

30 seeds per packet $4.45

Planting Instructions: Direct seed Sunflower after risk of frost has passed, and when the soil temperature is above 18 degrees Celsius. Sow in a furrow, 1 - 1.5 inches deep and 4 inches apart, thinning to 1 plant per every 8 inches.