Rudbeckia – Cone Flower, Golden Glow, Black Eyed Susan, Perennials Guide to Planting Flowers

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Perennial Flower Information

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Rudbeckia – Cone Flower, Golden Glow,
Black Eyed Susan

The garden’s gold is greatly
enhanced in Autumn by the sorts of Rudbeckias, especially
the Golden Glow, which is the double form of Rudbeckia
laciniata.
Everyone knows this common perennial
and admires its wealth of bloom. One of the handsomest
Coneflowers is R. Newmanii (speciosa) which bears
golden yellow single, Daisy-like flowers with a high
purple cone in the center. It blooms from August to
September and grows several feet tall. There is an interesting
sort which has smooth, gray-green, Cabbage-like leaves,
known as R. maxima. The plants grow 6 feet to
8 feet tall and bear bright yellow flowers, 4 inches
or 5 inches in diameter, upon long, stiff stems. The
cone at the center is often 2 inches high. Another grayish
sort is R. subfomentosa, but in this case the
leaves and stems are densely covered with hair. The
flowers are brilliant yellow with a chocolate center
and are borne in large clusters. This sort also blooms
in late Summer and early Fall. The Autumn Sun, R.
nitida,
has rich yellow flowers in which the rays
are decidedly drooping. It blooms from August to October.
R. friloba is a biennial sort with yellow flowers
which have orange or purple-brown markings and a black
purple cone in the center. R. purpurea, the Purple
Coneflower, is discussed under Echinacea.

UTILIZE. The showy
character of the plants make them especially useful
in bold masses for the border. The Golden Glow is valued
where there are outbuildings, fences, and unsightly
objects to be hidden. All the sorts serve admirably
as cut flowers, for the stems are long, and the blooms
are lasting.

GENERAL. The plants thrive
anywhere, but are especially adapted to sunny places.
When many of the sorts are cut back after flowering,
they will send up a second crop of flowers.

PROPAGATION. All the sorts,
except Golden Glow, may be grown from seed, but the
usual method of propagation is by division of the plants
in early Spring. Some of the wild Rudbeckias, generally
known as Black-eyed Susans, are biennials. These are
raised from seed, but as they usually self-sow, further
seeding is generally unnecessary.

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