All About Black-eyed SusanThe name Black-eyed Susan has developed into a broad category that seems to include a wide variety of daisy-like yellow flowers. These include annuals, biennials and perennials. Probably the most popular of these the last few years has been the Rudbeckia Goldsturm. Similar to the Purple Coneflower, the Goldsturm is a perennial that is very low maintenance. The three-inch flowers grow on stalks reaching up to two feet tall, and provide a bright splash of color from mid summer until the first frost. They are perfect for wildflower gardens, borders, or just mixed in among your other plants. In addition to making great cut flowers, they are attractive to butterflies and small children.
Growing Black-eyed SusanBlack-eyed Susan can be grown from plants or seeds purchased in garden centers. Either one can be planted in early fall, or in the spring after the last frost. Planting in the fall will result in a better crop the following year. Choose a sunny or partly sunny location in soil that drains well. Set plants into the ground at the same depth as their dirt enclosures and space 12 to 15 inches apart. If using seeds, they should only be pressed lightly into the soil, as they need light to germinate. Water. Thin them to 12 to 15 inches after they have reached a couple of inches in height. Deadheading (removing faded flowers) will encourage the plant to produce more blossoms.
Black-eyed Susan will self-sow if you leave some of the flowers to die off naturally. Alternately, you can dig up some of them after a few years, divide them and replant. This will also relieve crowding.