HomeAll Wildflowers: Gentiana-HibiscusHelianthus grosseserratus (Saw-Tooth Sunflower) Wildflower Seeds

Helianthus grosseserratus (Saw-Tooth Sunflower) Wildflower Seeds The Sawtooth Sunflower may grow quite tall, but its blossoms are usually smaller that those of more commonly known sunflowers… Write a review | No reviews for this product. Quantity: Select the size here . . . Packet: (150 Seeds) . . . $2.50 1/64 Oz: (0.44g) . . . $4.80 1/16 Oz: (1.77g) . . . $7.20 1/4 Oz: (7.09g) . . . $14.00

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Origin: US Native

Other Common Names: Thick-tooth Sunflower

Duration: Perennial

Bloom Time: Fall

Height: 72” to 120”

Spacing: 9” to 24”

Light: Full Sun to Part Shade

Soil Moisture: Medium

USDA Zone: 3a-11

Germination: Fall plant or cold stratify for 2 to 3 months for best results. Sow seeds just below the soil surface at 70F and water.

Seeds Per Oz: 13800

The Sawtooth Sunflower may grow quite tall, but its blossoms are usually smaller that those of more commonly known sunflowers. Flowerheads may reach 4 inches across, and are bright yellow in color, attracting bees and butterflies. Birds and small rodents feed on the seeds. Native Americans used a poultice made from the flowers to treat burns!

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