High biomass potential: Desiccated stalks add significant carbon to compost piles
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
Growth habit
Annual, tall (up to 12 feet)
Bloom diameter
Up to 2 feet
Days to flower
80 days
Sunlight requirement
Full sun
Flower color
Yellow
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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!
