Rudbeckia is the summer flower to brighten boring garden spots. Rudbeckias are known as a summer flower because their blooms are initiated only when days are long. For flower initiation Rudbeckias ...
Luckily, most coneflowers are hardy in a wide range of climates, with purple coneflowers (Echinacea purpurea) hardy in zones 3 through 8 and orange coneflowers (Rudbeckia fulgida) hardy in zones 3 ...
You should see sprouts in a few weeks to two months. The orange coneflower (Rudbeckia fulgida), or black-eyed Susan, will ...
BEST OF THE BUNCH - Rudbeckia These bright and cheery yellow ... Good varieties include R. fulgida sullivanti 'Goldsturm', which produces a profusion of flowers, and the double-flowered ...