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(Rudbeckia Hirta) Black-Eyed Susan grows perfectly in gardens, in borders and in flower beds, and it is a great summer time bloomer. Butterflies of many species are attracted to its bright blooms. It grows in all regions of North America in any soil from sand to clay, but it must have full sun. Black-eyed Susan care includes deadheading to prolong the bloom season, but the plants will re-seed themselves readily if you leave a few blooms to go to seed. *** HOW TO GROW: Depth: DO NOT COVER but press into soil! The Gloriosa plants form a clump that will reach 12 inches in width. Deadheading prolongs the bloom season, but Gloriosa Daisies will re-seed themselves readily if you leave a few blooms to go to seed. Rudbeckia Hirta flowers will not bloom much the first year the wildflower seeds are sown. Subsequent years will bring many more blooms. *** **SOIL Temperature for Germination: 70-85F **Plant Spacing: 12-18 inches. **Hardiness: Zones 3-9. **Sun Requirement: Full Sun. **Days to Germination: 7-30 days. **Germination Rate: 94%.
