You can get them as small plants at your local garden centers. Buy already
started plants. They spread pretty quickly too, in the spring when they get
about 3-4 inches high I transplant some from each patch to other areas and
they take right off and bloom for me. I have them all over the place here.
Every 2-3 years you may want to thin out the patches so they bloom better.
Spring or fall is the time to plant them.
There are many species of black-eyed susans, but the majority sold will be
either Rudbeckia fulgida, which is an annual, or R. hirta, which is a
long-lived perennial, & I think the latter is more to be recommended.
If you want the annuals, from seed would be preferable. The perennial also
grows easily from seed, but you can get a head start on them planting them
from potted starts or gallon clumps already mature. The most popular
cloned cultivar of R. hirta is "Goldsturm" which does not grow true from
seed & is best purchased as a mature gallon sized. If you settle for seeds
that are labeled "Goldsturm," they'll grow into something "close enough to
get by" but probably taller, thinner, & less compact. Most other R.
hirta varieties grow true from seeds.
I grow R. hirta with Echinacea purpurea which have the same soil &
watering needs & the same kind of tall reflexed flowers, but purply pink
instead of bright yellow. Also there's a white Echinacea. The white,
purple, & bright yellow flowers last all summer & much of autumn in a
mixed border in full sun.
Here's a page about "Goldsturm" Black-eyed Susan:
Here's a semi-dwarf echinacea that looks great with rudbeckia:
And here's the white echinacea:
-paghat the ratgirl
"Of what are you afraid, my child?" inquired the kindly teacher.
"Oh, sir! The flowers, they are wild," replied the timid creature.
The info is good, but you've switched the species names: 'Goldsturm' is a
cultivar of Rudbeckia fulgida (a reliable perennial), known sometimes as
Rudbeckia fulgida var. sullivantiii. Rudbeckia hirta is hardy to Zone 5 but
tends to behave more like a biennial or short-lived perennial (and can be grown
as an annual). Cultivar names are, among others, 'Marmalade' and 'Irish Eyes.'
nNJ usa z7a
For most people where I live, "Black Eyed Susan" means Rudbeckia
These only propagate through cuttings. So, the best way to grow them
is to buy them potted from your local nursery. A few plants will
quickly multiply over the years. They can be planted from pots into
the ground any time of the spring or summer.
There *are* seed packets available that say "Rudbeckia Goldsturm" on
them, but what these are is a strain. They are Goldsturms hybridized
with other species so that viable seeds are produced, so what you get
are mixed Goldsturm hybrids. In my experience, these plants are
usually pretty small and don't flower that much the first year. The
flowers themselves *resemble* Goldsturms, but are not the same thing.
Annual vanities such as "Glorissa Daisy" were first bred in the 1950's
by Burpee seed. They grow 2-3 feet tall and have lots of nice great
big yellow flowers. If you like to plant seed, I recommend Glorissa
The Black-Eyed Susan (Rudbeckia hirta) has been the official Maryland flower
since 1918 when it was designated the "Floral Emblem" of Maryland by the
General Assembly (Chapter 458, Acts of 1918; Code State Government Article,
In his Species Plantarum (1753), the Swedish naturalist Linnaeus described and
named the flower Rudbeckia after Olav Rudbeck and his son, both professors at
the University of Uppsala, and hirta from the Latin meaning "rough hairy".
Black-Eyed Susans are perennial daisies or coneflowers, members of the
sunflower family (Asteraceae). The flower heads measure 2 to 3 inches in
diameter with yellow rays circling a dark-brown, spherical center. Commonly
found in fields and on roadsides, they bloom between May and August, reaching 2
to 3 feet in height. They are native to the United States, east of the Rocky
Even though the "Black Eyed Susan" has long been associated with the races
at Pimlico and is the state flower of Maryland, it is not native to
Maryland. It is native farther west but has migrated eastward along the
railroad lines and into other open places.
Still it is not as bad a choice for state flower as those for some other the
Georgia, Iowa, New York and North Dakota have all chose the rose as their
state flower. At least all of them but New York have chosen native Rosa
You would have thought that Georgia would have chosen the peach blossom but
it isn't so.
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