Coneflowers — Three-lobed coneflower (Rudbeckia triloba) Seeds

Fall-blooming, bright yellow small coneflowers brighten up gardens and shady edges with tall stems and delicate foliage. Butterflies are attracted to the nectar and birds to the seeds. Foliage can be cut back in mid-summer to reduce height. Cut flower. Each seed package carries a specific germination code along with the plant description. These codes indicate specific sowing instructions. A Seeds can be sown outdoors in early spring. B Seeds need a winter or cold period to germinate. Sow outdoors in fall or winter. C Seeds need light to germinate; sow on soil surface and leave uncovered. D Seeds need alternating cycles of warm-to-cold-to-warm to germinate. They can be sown either outdoors in spring or summer and will germinate the following year or in a flat in a warm place for 3 months, then moved to a refrigerator for 2 months, then moved outside in the early summer warmth. E Seeds can not be allowed to dry out. Sow immediately. F Seeds take two years to germinate. Sow out