Height: 36 in Spacing: 15 in
Flowers: Orange, yellow Comments: If you are looking for a flower that thrives with heat and drought, look for the black-eyed Susans. Rudbeckia tolerates most soils if given full sun. They bloom for an extended period in the heat and flowering is more profuse when the faded blossoms are removed. The flowers make good cut flowers. The self-seeded volunteer plants may be of different color than the parent plant. The plant can be used on most soil and are usually pest free. They also make good background plants.
Propagation: Rudbeckia seed may be planted directly into the garden. The seed germinates in 5 to 10 days at temperatures between 70 to 75 degrees. Seed started indoors germinates more quickly. Barely cover the seed.
Cultivars: 'Becky Mix' 'Indian Summer' 'Irish Eyes' - Golden-yellow, 5-inch flowers 'Toto Golden Yellow' ‘Green Eyes’ ‘Rustic Colors’