Mammoth Russian Sunflower Seeds — Rohrer Seeds Skip to content
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Mammoth Russian Sunflower Seeds

SKU 9936200
Original price $1.99 - Original price $17.99
Original price
$1.99 - $17.99
Current price $1.99
Available Sizes: Mammoth Russian Sunflower (pkt)

About- This well-known heirloom can grow up to 14' tall and produce massive heads, typically 10-12" in diameter. The golden green centers and traditional yellow petals attract pollinators of all kinds and are sure to make a statement in your garden.

When and Where to Plant- Direct sow in the spring after the threat of frost has passed. Prefers  well draining soils and full sun. 

Care and Harvest- Harvest heads when they have reached maturity. Hang in a warm, well ventilated area, removing seeds once the head has dried completely.

Type- Annual

Botanical Name- Helianthus annuus

Planting Depth- 1/2"

Days to Germination- 14-21

Plant Spacing- 24-48"

Height- 9-12'

Approximate Seeds per Pkt- 50

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