PlantsFlowers

Black Eyed Susan

Black Eyed Susan (Rudbeckia hirta)
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Rudbeckia hirta

Chicago-region native. Suited to zone 6a.

Fast first-year color

EasyFlowers
Light
Full sun
Moisture
Dry–medium
Mature size
2–4 ft
Spacing
18–30 in
Bloom or harvest
Flowers Jun–Sep
How it spreads
Biennial / short-lived reseeder
What to buy
Plug or division for reliable residential establishment; seed for larger restoration areas.
When to plant
Apr–May; late Aug–Sep, finishing about six weeks before the first frost.

In the design

Leave some stems and seedheads through winter; divide or thin only when needed.

Plants that share this spot

More in this group

Reference details
Conservatism value
1
Wetland indicator
FACU