Guide to growing Coneflower - Rudbeckia
The Rudbeckia genus consists of hardy perennials that range from 30cm to 1.8M in height.
Rudbeckia bloom in the summertime when they carry white or yellow daisy like flowers that have brown centers.
Some of the common names for Rudbeckia include Coneflower, Gloriosa daisy, And Black Eyed Susan.
How to grow Coneflower
The seeds of coneflower and related Rudbeckia should be sown on the soil surface a couple of weeks before the last frost of spring is expected. Ideally the plants should be grown in an area that has good drainage and a heavy soil pH that is slightly acidic to neutral (pH 6 to 7). Coneflowers can be grown in either sunny or partially shaded areas of the garden and should be spaced at 35 to 45cm apart (small Rudbeckia) or 70 to 90cm apart for larger Rudbeckia varieties.
If starting off coneflowers indoors then you will first need to imbibe the coneflower seeds by placing them in a fridge (within soil, in a plastic bag) for two weeks. The seeds should them be sown about a month and a half before you expect the last frost; they require light and a temperature of 20 to 22 degrees Centigrade to germinate; Germination of coneflower should take from one to three weeks. Once established plant outdoors after the last frost.
Caring for Coneflower and other Rudbeckia in the garden
Coneflower and other Rudbeckia are easy to look after. They should be staked, watered frequently, and dead flower heads removed. It is best to divide Rudbeckia plants every 4 years to maintain splendid specimens. If you require more Coneflowers then they can be propagated by division or by taking cuttings in the spring.