Heirloom variety introduced in 1880s: Offers historical significance and unique garden heritage
Certified organic seeds: Ensures chemical-free, sustainable growing for health and the environment
Tall, robust plants up to 12 feet: Provides striking visual impact and supports large flowering heads
Large, two-foot diameter blooms: Attracts bees and pollinators for a lively garden ecosystem
High-yielding seeds and biomass: Produces abundant seeds and stalks for compost or biomass energy
Summarized by Shop
This heirloom sunflower (Helianthus annuus) was originally introduced to the states in the 1880s, and is still the most popular sunflower around. Russian Mammoth towers over the garden with thick stocks that grow up to 12 feet, with flowering heads and yellow blossoms that can reach up to two feet in diameter and attract a great deal of a
Plant species
Helianthus annuus
Days to flower
80 days
Growth habit
Annual
Sunlight requirement
Full sun
Flower color
Yellow
Suitable space
Outdoors
Summarized by Shop
5.0
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Good germination, looking strong so far!
I tested direct sowing and deep trays, so we'll see how they do. Both sets looking quite strong so far!