Organic Sunflower, Russian Mammoth
(1/4 lb)

Item Number: SNV5140

$16.99/1/4 Lb

In Stock! Ships from Northern CA.

$16.99/1/4 Lb

In Stock! Ships from Northern CA.

Buy Big, Save Big! As low as $13.59 each!
  • Buy 10 for $15.29 each
  • Buy 20 for $14.44 each
  • Buy 50 for $13.59 each


Sunflower - Russian Mammoth - Helianthus annus

Annual Open Pollinated. Organically Grown. This variety is the result of Russian breeding efforts and returned to the US in 1880 then as now under the name "Russian Mammoth." This giant sunflower has bright gold flowers that can grow easily to 10" across. Produces a single flower, filled with grey and white striped edible seeds. Plant seed 6" apart and 1/2" deep after spring frost. Thin to 8"-12" when plants reach 2" in height.

Flowers: Edible seeds. Blooms late summer to fall
Attracts: Attracts bees and butterflies; leaves are favored by finches
Soil: Adaptable to various, moderately fertile soil types
Native: North America - Naturalised worldwide
USDA Zone: 3-10
Plant In: Spring
Planting Depth: 1/2"
Days to Germinate: 7-14 Days
Height At Maturity: 10'-15'
Sun/Shade Requirements: Full Sun
Water Needs: Moderate Water
Approx seeds per 1/4 lb: 763 Seeds

Peaceful Valley Farm & Garden Supply brand wildflower seeds from packs are guaranteed to germinate. Once the seeds have sprouted, please understand that Peaceful Valley cannot be held responsible for the many uncontrollable growing and climatic conditions that must be met to ensure the success of your crop(s). Peaceful Valley brand wildflower seeds are all non-GMO and Certified Organic.
Buy with confidence and plant the best!


Seed Unit Sizes 1/4 lb Organic Status Certified Organic Product
Seed Unit Sizes 1/4 lb
Organic Status Certified Organic Product

Planting & Care

Plant seeds 6" apart and 1/2" deep after spring frost. Thin to 8 - 12" apart when plants reach 2" in height.

What You May Need

Shipping Information

Shipping Weight: 0.30 lbs. Dimensions: 6"L x 5"W x 1"H


amazing growth

Planted a row of these seeds in a newly-tilled garden at the end of March (coastal California). They sprouted quickly, and now, two months later, range from six feet to eight feet tall! That's about a foot a week growth for the tallest ones. The first few are just starting to form buds. Considering that I have never been able to grow sunflowers previously, these are wonderful.

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