Allow three feet of space on either side of the row and space plants about a foot apart within a row. If space is tight, use fewer plants in the ground and put the rest in containers for a wonderful show. They can be utilized in flower boxes and hanging baskets as well. The third AAS flower award for 1995 is Rudbeckia hirta 'Indian Summer'. Indian Summer' produces huge golden yellow blooms that are 6 to 9 inches across.
Flowers are single or semidouble with a contrasting dark center.
Plants grow about 3 feet tall and do not require staking. Once flowering begins, it continues throughout the season. Plants are heat and drought tolerant and thrive in poor soils. For best performance though, provide them with adequate water and fertilizer. In the garden, plants should be spaced one to two feet apart.