Sweet Black-Eyed Susan
Rudbeckia subtomentosa
- Stay Protected with Plant Sentry ™
Sweet Black-Eyed Susan is backordered and will ship as soon as it is back in stock.
Plant Sentry™
Plant Sentry™
Plant Sentry™ Protected
Your order is protected by our compliance system that:
- Prevents restricted plants from shipping to your state
- Ensures plants meet your state's agricultural requirements
- Protects gardens from invasive pests and diseases
Delivery and Shipping
Delivery and Shipping
Delivery and Shipping
Fast, Safe Plant Delivery
Ships in 3-4 business days • Tracking provided • Weather protected
| Under $50 | $9.99 |
| $50 - $99.99 | $14.99 |
| $100 - $149.99 | $16.99 |
| $150+ | $24.99 |
✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee
Understanding Plant Options
Nature Hills offers plants in two main formats:
- Container Plants: Grown in pots with soil, sized by container volume and plant age
- Bare Root Plants: Dormant plants without soil, sized by height measurements
Container Plant Sizes
Container sizes indicate plant age and growing capacity rather than liquid volume equivalents. Our containers follow industry-standard nursery "trade gallon" specifications, which differ from standard liquid gallon measurements.
Young Plants (6 months to 18 months old)
| Container Size | Actual Volume | Metric Equivalent |
|---|---|---|
| 2" x 2" x 3" | 0.18 - 0.21 dry quarts | 0.20 - 0.23 dry liters |
| 4" Container | 0.31 - 0.87 dry quarts | 0.35 - 0.96 dry liters |
| 4.5" Container | 0.65 dry quarts | 0.72 dry liters |
| 6" Container | 1.4 dry quarts | 1.59 dry liters |
| 1 Quart | 1 dry quart | 1.1 dry liters |
| 5.5" Container | 1.89 dry quarts | 2.08 dry liters |
Established Plants (18 months to 2.5 years old)
| Container Size | Actual Volume | Metric Equivalent |
|---|---|---|
| 2 Quart | 2 dry quarts | 2.2 dry liters |
| #1 Container | 2.26 - 3.73 dry quarts | 2.49 - 4.11 dry liters |
| 5" x 5" x 12" | 3.5 - 4.3 dry quarts | 3.85 - 4.74 dry liters |
Mature Plants (2-4 years old)
| Container Size | Actual Volume | Metric Equivalent |
|---|---|---|
| #2 Container | 1.19 - 1.76 dry gallons | 5.24 - 7.75 dry liters |
| #3 Container | 2.15 - 2.76 dry gallons | 8.14 - 12.16 dry liters |
Large Plants (3-5 years old)
| Container Size | Actual Volume | Metric Equivalent |
|---|---|---|
| #5 Container | 2.92 - 4.62 dry gallons | 12.86 - 20.35 dry liters |
| #6 Container | 5.25 - 6.01 dry gallons | 23.12 - 26.42 dry liters |
| #7 Container | 5.98 - 6.53 dry gallons | 26.34 - 28.76 dry liters |
Bare Root Plants
Bare root plants are sold by height from the root system to the top of the plant. Plants may exceed minimum height requirements.
Common Sizes:
- Trees: 1 foot, 2 feet, 3 feet, 4 feet, 5 feet, 6 feet
- Shrubs & Perennials: 1 foot, 18 inches, 2 feet
Important Notes
Container Volume Specifications
- Trade Gallon Standard: Our containers follow industry-standard "trade gallon" specifications established by the American National Standards Institute (ANSI Z60.1) for nursery stock
- Volume Variations: Actual soil volume may vary due to plant root systems and growing medium settlement
- Age Indicators: Container size primarily indicates plant age and maturity rather than liquid volume equivalents
Growing Conditions
- Plant size can vary based on variety and growing conditions
- Container size helps indicate plant maturity and establishment level
- Larger containers generally mean more established root systems and faster landscape establishment
Seasonal Availability
- Bare root plants are available seasonally when dormant
- Container plants are available throughout the growing season
- Specific varieties may have limited availability in certain sizes
Questions?
For questions about specific plant sizes or availability, please contact our plant experts who can help you choose the right size for your landscape needs.
Plant Highlights
Sweet Black-Eyed Susan highlights at a glance!
Specifications
Specifications
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Brand
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Botanical Name
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Growing Zones
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Mature Height
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Mature Spread
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Sun ExposureFull Sun
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Moisture
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Soil
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Growth RateFast
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Flower Color
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Pollinator Friendly
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Pollinator Required
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Pruning Time
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Bloom PeriodSummer, Fall
Growing Zones 4-8
Add radiance to your garden! If you're looking for clusters of sunshine and color, the Sweet Black-Eyed Susan (Rudbeckia subtomentosa) is sure to make you smile. This native perennial wildflower bursts with a rich yellow that will brighten up any dull garden or rainy day!
This thin-petalled, yellow bloom will bring color and energy to your garden in summer and fall! And the Sweet Black-Eyed Susan is low-maintenance which makes it great for all gardeners, including beginners!
Beneficial Pollinators love this buttery yellow native flower! The elegant yellow of the Sweet Black-Eyed Susan appears as a perfect perch to bees with their ability to see UV light. This flower makes a great symbiotic partner to keep the ecosystem surrounding your garden thriving with pollinator plants!
Hardy throughout USDA growing zones 4 to 8 and grows up to 5 feet in height when in bloom and spread up to 24 inches in width. Handling chill and heat, these natives grow, spread politely, and self-seed when allowed to expand their durable sun-loving presence in the landscape!
Planting and Application:
Alight any visitor's eyes with this vibrant yellow along the border of your garden or along a pathway to a wishing well. And don't forget this attractive plant is sure to burst with several heads of blooms simultaneously! Deadhead (or snip a few for your bouquets indoors!) to encourage a rebloom that lasts till frost.
It makes for a stunning sight along a pathway or mixed with other colorful wildflowers in a butterfly garden. Pollinator gardens are ideal locations for these pollen and nectar-rich blooms! Pair this pretty flower with other wildflowers or milkweed to keep the butterflies returning day after day for a tasty meal. And add a bench nearby to watch the show with this un-bee-lievable beauty.
Plant in masses with other hardy perennials throughout tricky slopes and sun-drenched hell strips along sidewalks and driveways for a lovely landscape effect! Blending into mixed perennial plantains for late-season color, spruce up Cottage Gardens while being tough enough for Rock Gardens.
- Native Sunny Rays Of Sunshine
- Durable Mounds of Resistant Foliage
- Pollinator & Bird-Friendly
- Lasting Cut Flower, Reblooming & Winter Interest
- Sun-Garden Specimens, Landscape Bed & Border Workhorses!
#ProPlantTips for Care:
This robust beauty grows well in well-drained soil and alongside other varieties of flowers. Provide your new plants with moderate moisture, for best performance. Like most natives, this plant will thrive in your yard and will have low-moisture needs once established. or best results and the most blooms, supply supplemental moisture during drought and a 3-4 inch layer of mulch over the entire root system.
Deadhead spent flowers to keep the blooms returning until frost. In the autumn, prune away the dead leaves to remove any potential fungal issues that were present or to prevent self-seeding where not desired. But if you do wish for spring surprises and free winter bird-seed, wait to prune until spring just before you see new growth emerge. Divide clumps every 3-5 years to keep the mounds growing vigorously.
In some locations, it may thrive a little "too well". We take the worry out of the experience when you choose plants from Nature Hills. We use Plant Sentry™ to ensure we follow all local, state, and federal agricultural regulations for plants that can become invasive in your area.
- Cold & Heat Tolerant In Full Sun
- Easy to Grow & Low Maintenance - Any Well-Drained Soil Type
- Rugged & Drought Tolerant Once Established
- Deadhead For Reblooms & Prune In Fall
- Deer Seldom Bother These & Pest-Resistant
Order the hardy and durable Sweet Black-Eyed Susan and enjoy their native flower power in your landscape today from Nature Hills Nursery!
