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moderate Care
black-eyed Susan
Rudbeckia fulgida var. sullivantii
Black-eyed Susan (Rudbeckia fulgida var. sullivantii) is an herbaceous perennial native to the North American prairies. It is easily recognizable by its bright yellow, daisy-like flowers with black cone-shaped centers. It typically grows to a height between 1 to 2 feet tall and produces numerous blooms from summer into fall. This species is easily grown and requires little maintenance, making it a popular choice for gardens and meadows. It is also a great addition to wildflower mixes or pollinator gardens, providing nectar for bees, butterflies, and hummingbirds.
Sunlight
Full Sun
Water Needs
low
USDA Hardiness Zones
Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
Hardiness Map
Green areas show climates worldwide where this plant can grow.
Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
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Water Every
"7-10" days
Sun Needs
full-sun
Growth
Low
Care Level
Low
Watering Schedule
Frequency
Day 1"7-10" daysDay NaN
💧 Water every "7-10" days
Seasonal Adjustments
Adjust watering frequency based on temperature, humidity, and season. Water more frequently in summer and less in winter.
Pro Tip: Check soil moisture before watering. Stick your finger 1-2 inches into the soil—if it's dry, it's time to water!
Season
Fall
Sep Oct Nov
Winter
Dec Jan Feb
Spring
Mar Apr May
Summer
Jun Jul Aug
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pruning Time
How to Propagate
Seed Propagation
Start seeds indoors 6-8 weeks before last frost date
Division
Divide root ball in spring, replant sections immediately
Cutting
Take 4-6" cuttings in spring, root in water or moist soil
Layering Propagation
Bend stem to soil surface, cover lightly, roots form in 4-6 weeks
Plant Characteristics
Drought Tolerant
Is This Plant Right for You?
Good For:
- •Forgetful waterers
- •Homes with pets
- •Low-maintenance gardens
Consider Carefully:
- •Indoor growing
Bloom Seasons
Care Tips
Light Requirements
Needs at least 6 hours of direct sunlight daily. Place in the sunniest spot in your garden.
Watering
Allow soil to dry out between waterings. Overwatering can cause root rot.