HomeMidwest Wildflowers – S-SSilphium integrifolium (Rosin Weed) Wildflower Seeds

Silphium integrifolium (Rosin Weed) Wildflower Seeds A sunflower-like perennial, Rosinweed derives it's common name from the resinous gummy sap that secrets out of any broken or cut plant stems... Write a review | No reviews for this product. Quantity: Select the size here . . . Packet: (150 Seeds) . . . $2.50 1/16 Oz: (1.77g) . . . $4.80 1/4 Oz: (7.09g) . . . $6.00 1 Oz: (28.4g) . . . $12.00 1/4 Lb: (113g) . . . $48.00

More Info

Origin: US Native

Other Common Names: Wholeleaf Rosinweed

Duration: Perennial

Bloom Time: Fall

Height: 36” to 60”

Spacing: 18” to 24”

Light: Full Sun

Soil Moisture: Medium to Dry

USDA Zone: 3a-9b

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: 2600

A sunflower-like perennial, Rosinweed derives it's common name from the resinous gummy sap that secrets out of any broken or cut plant stems. Native American Indian children would chew this resin as gum! Though strikingly alike in appearance, Rosinweed tends to bloom earlier than the sunflower, but at times, their blooming period will overlap. Goldfinches will occasionally nibble on the seeds, and livestock will eat the foliage, but overall this plant is untouched by animals.

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