| Brand | Outsidepride |
|---|---|
| Type | Seeds for planting |
| Average Germ Time | 21 - 28 days after cold period |
| Bloom Color | Yellow |
| Bloom Season | Late spring through summer |
| Deer Resistant | Yes |
| Environment | Full sun |
| Foliage Color | Dark green |
| Height | 40 - 90 inches |
| Light Required | Yes |
| Moisture | Keep seeds moist until germination |
| Plant Spacing | 15 - 18 inches |
| Season | Perennial |
| Soil Type | Loamy, moist to slightly dry, pH 6.1 - 7.4 |
| Sowing Rate | 1 ounce per 250 square feet |
| Temperature | 24 to 39F for 4 - 8 weeks, then moved to 68F for germination |
| USDA Zones | 4 - 9 |
| Depth | 1/8 - 1/4 inch |
Check the listing for details. 200 Seeds Silphium Seed - Cup Plant Flower Seeds. Listed at 8.99 USD. Silphium (Silphium Perfoliatum) - This towering, flowering plant is a native of the tall grass prairie and readily establishes from Silphium seeds. It is commonly known as Cup Plant and is a perennial giant which has yellow daisy-like flowers.