Goldsturm Rudbeckia Seeds 6605. Golden yellow flowers with dark buttons from August through September on 70 cm (28″) plants. Heat and drought tolerant and good for cut-flowers too! Controversy surrounds the heritage of Goldsturm. Some authorities assure us that Goldsturm is propagated vegetatively only (cuttings, division, etc.). We offer a seed true to the aesthetics of the named variety. Avoid high fertility and irrigate only when absolutely necessary. Water soil below foliage, if possible. Hardy to Zone 3. Packet contains 15 seed.
How to Grow
3700 seed/gram. This robust perennial will turn heads wherever planted and withstand more heat and drought than most. Sow this type outdoors from September through October – select a site in full sun. This fall sowing allows any dormant seed to be naturally stratified over the winter. Seed can be started indoors in a soil-less mix from February to the beginning of March. Germinates at 20 C (70 F) in 14 to 21 days. Grow on under lights at a slightly cooler temperature before hardening off and transplanting outdoors to a sunny spot. Space 30 cm (12″) apart in the garden.