Clasping Coneflower Seeds
Rudbeckia amplexicaulis
- HOW TO GROW
- FAST FACTS
- REVIEWS
HOW TO GROW
Sowing: Direct sow in late fall, pressing into the surface of the soil since this plant needs light to germinate. For spring planting, mix the seeds with moist sand and store in the refrigerator for 30 days before planting. Keep the soil lightly moist until germination, which usually takes 2-3 weeks. The seeds can also be started indoors 6-8 weeks before planting in spring. Keep seedlings lightly moist, and transplant them as soon as they have developed several leaves.
Growing: Water seedlings regularly until they become established. This plant grows very quickly and needs little care, though it grows best in fairly moist soil. Mature plants also tolerate heat and drought, though they prefer moisture and will benefit from occasional watering in dry weather. Deadhead for the longest blooming period. This plant attracts butterflies, and may self-seed.
Harvesting: For cut flowers, choose stems with flowers that have just opened. Strip the foliage that will fall below the water level, and place in water immediately.
Seed Saving: After the flower petals fall from the head, the center cone will begin to develop seed. Remove the seed heads as soon as the stem beneath the cone begins to turn dry and brown. Spread the seed heads out to dry away from direct sunlight, then separate the small seeds from the stems by rubbing them lightly. Store the cleaned seed in a dry, cool place.
FAST FACTS
Common Names: Clasping Leaf Coneflower
Latin Name: Rudbeckia amplexicaulis
Species Origin: US Native Wildflower
Type: Native Wildflowers
Life Cycle: Annual
USDA Zones: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
US Regions: California, Mountain, Arid/Desert, Plains/Texas, Midwest, Northern, Northeast, Southeast
Seeds per Ounce: 50,000
Stratification: No Stratification
Germination Ease: No Stratification
Sunlight: Full Sun, Part Sun
Height: 24 Inches
Color: Red, Yellow
Bloom Season: Blooms Late Summer, Blooms Early Fall
Uses: Attracts Pollinators, Cut Flowers, Deer Resistant
DESCRIPTION
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Though similar to the common black-eyed susan, this native plant is set apart by its "clasping" leaves. The genus name "Rudbeckia" honors a family of renowned scientists and professors, the Rudbecks of Sweden, who taught Carl Linnaeus at the University of Uppsula. The species name "amplexicaulis" means "stem-clasping," in reference to the growth of the leaves.
HOW TO GROW
Sowing: Direct sow in late fall, pressing into the surface of the soil since this plant needs light to germinate. For spring planting, mix the seeds with moist sand and store in the refrigerator for 30 days before planting. Keep the soil lightly moist until germination, which usually takes 2-3 weeks. The seeds can also be started indoors 6-8 weeks before planting in spring. Keep seedlings lightly moist, and transplant them as soon as they have developed several leaves.
Growing: Water seedlings regularly until they become established. This plant grows very quickly and needs little care, though it grows best in fairly moist soil. Mature plants also tolerate heat and drought, though they prefer moisture and will benefit from occasional watering in dry weather. Deadhead for the longest blooming period. This plant attracts butterflies, and may self-seed.
Harvesting: For cut flowers, choose stems with flowers that have just opened. Strip the foliage that will fall below the water level, and place in water immediately.
Seed Saving: After the flower petals fall from the head, the center cone will begin to develop seed. Remove the seed heads as soon as the stem beneath the cone begins to turn dry and brown. Spread the seed heads out to dry away from direct sunlight, then separate the small seeds from the stems by rubbing them lightly. Store the cleaned seed in a dry, cool place.
FAST FACTS
Common Names: Clasping Leaf Coneflower
Latin Name: Rudbeckia amplexicaulis
Species Origin: US Native Wildflower
Type: Native Wildflowers
Life Cycle: Annual
USDA Zones: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
US Regions: California, Mountain, Arid/Desert, Plains/Texas, Midwest, Northern, Northeast, Southeast
Seeds per Ounce: 50,000
Stratification: No Stratification
Germination Ease: No Stratification
Sunlight: Full Sun, Part Sun
Height: 24 Inches
Color: Red, Yellow
Bloom Season: Blooms Late Summer, Blooms Early Fall
Uses: Attracts Pollinators, Cut Flowers, Deer Resistant