Rudbeckia hirta Becky Yellow

Black-eyed Susan

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Vibrant black-eyed Susan variety featuring bright yellow petals and dark brown centers, prized for garden borders and cut flowers.
yard Outdoor plants wb_sunny Sun pets Pet Friendly
info Pot sizes shown are estimations. Real dimensions may vary depending on the merchant.
Merchant Pot Size Availability Price
Amazon.com 2-3 in In Stock $24.00 Buy
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Plant Details

Common Name Black-eyed Susan
Family Asteraceae
Genus Rudbeckia
Species Hirta
Variety Becky Series Yellow
Origin North America
Blooming Summer to Autumn, prolific flowering if deadheaded regularly
Leaf Color Grey-green foliage
Sunlight Sun
Category Outdoor plants
Pet Friendly check Yes
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Care & Maintenance

terrain
Soil

Well-drained, fertile loam; tolerates poor soils and clay if drained well

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Watering

Drought tolerant once established; water regularly during establishment to prevent wilting

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Sunlight & Care

Requires full sun for best blooms (6+ hours daily), partial shade in hot climates acceptable

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Fertilization

Apply balanced slow-release fertilizer in spring before blooming season begins

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Pruning

Deadhead spent blooms to extend flowering, cut stems to ground after first frost

Pest Control Aphid Leafhopper Root-Knot Nematode

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 5 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
14° – 100°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
30% – 75%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
3000 – 50000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
15% – 45%
% volumetric
Water content in the growing medium
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Soil EC
300 – 2000
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Rudbeckia hirta Becky Yellow? Select a symptom to diagnose and fix the issue.

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