Nodding Onion
Allium cernuum
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Nodding Onion - #1 Container 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
Nodding Onion 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 RateMedium
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Fall Color
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Pollinator Friendly
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Pollinator Required
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Fragrant
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Pruning Time
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Bloom PeriodSummer

Growing Zones 4-8
Elegant, Nodding Flowers on an Edible Native
- Beautiful Light Lavender Blooms
- Edible Native Plant
- Attracts Hummingbirds, Bees, and Butterflies
This onion is gorgeous and great for naturalizing in a water-wise garden. The Nodding Onion (Allium cernuum) is an edible ornamental North American native.
The Nodding Onion is a perennial bulb that produces a sweet and celebratory cluster of flowers. This simple beauty bursts with light pink and purple flowers in the summertime. These delicate flowers tower above the ground and cluster in an umbel-shaped display around the end of their stem.
Butterflies and honeybees enjoy stopping by these pendant flowers. Hummingbirds are also drawn to the nectar.
Gardens rely on many details to deliver the whole experience. With this wind-loving plant, both the long, grassy leaves and the pendulous flower heads weave and bob in the breeze. Adding motion brings a dynamic quality to your landscape.
The Nodding Onion is robust and makes a great solution for some areas that can be hard to grow other plants. This is a wonderful plant for the front of a mixed border. This naturalizing plant is also excellent for adding soft subtle color to your Prairie Garden.
Native Americans used the Nodding Onion historically to add flavor to their meals. You can eat it cooked or raw. And its bold flavor is the perfect addition to a salad to a roasted vegetable dish. Dig the bulb, chop, blanch two minutes and freeze in bags to use as a very special ingredient at your Thanksgiving dinner table. A little goes a long way!
This plant thrives and flowers once fully established. Under some circumstances, it may even flourish a little "too well" in some locations. Nature Hills uses Plant Sentry™, so we can easily abide by all local, state and federal regulations for plants that can become invasive in certain areas.
If you can grow this perennial in your area, count your lucky stars! What a beauty.
Great in Butterfly and Pollinator, Herb and Kitchen Gardens.