Rubra Fritillaria
Fritillaria Imperialis 'Rubra'
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Rubra Fritillaria - 3 Pack Bulbs is backordered and will ship as soon as it is back in stock.
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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
Rubra Fritillaria highlights at a glance!
Specifications
Specifications
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Botanical Name
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Growing Zones
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Mature Height
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Spacing
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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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Pruning Time
Growing Zones 5-8
Get ready to do a doubletake this spring! Gorgeous tropical-looking red blooms, the showy Rubra Fritillaria (Fritillaria Imperialis 'Rubra') takes late spring ephemerals to a new level with their fantastic blooms that look like they belong on an exotic beach! These fragrant blooms look like nothing else you've seen in the typical spring garden!
Its quirky and flamboyant appearance makes it a crown jewel for gardeners! Featuring drooping clusters of deep red bells with pointed petals that ring the top of a tall, sturdy green stem. Like a green crown, each flower cluster is topped with a spikey ball of leaves rising over the blooms! The bulbs of Red Crown are dramatic focal points and thrillers in the landscape and in floral bouquets, you’ll feel like you joined a luau!
Growing upward of 3 feet in height, the fast-growing stems rise above the green foliage clumps with a curious ring of green leaves skirting midway along the stems! Rubra Fritillaria, also known as Crown Imperials, are easy to grow in USDA growing zones 5 to 8, and usually not bothered by deer, rodents, or Black Walnut juglone. These bulbs naturalize and form little colonies throughout the landscape.
Planting and Application:
This plant doesn't just demand a closer inspection - it requires one! Rubra Fritillaria are must-haves for poolside and Rock Garden displays, as curiosities at the back of the garden border, or adding a tropical element to modern, architectural plantings. Best in rows and groupings, these Spring bulbs have a whimsical look! It's also happy to shine as a background plant that reaches its impressive crown high above other plants. It's happy to shine with a tropical flair no matter where you plant it!
When you look like this, you have no choice but to stand out, which is why this Red Crown Imperial makes a superior accent plant. Vertical elements, Rubra Imperials are dramatic thrillers in pots and planters around sunny porches, as unique architectural accents on front porches, or as unique features in mixed seating area planters that pollinators and children will be drawn to!
- Vertical Flower Spikes of Burgundy Bells
- Low-Growing Clumps & Slender Green Foliage
- Pollinator Friendly & Amazing Cut Flowers!
- Naturalizing & Low-Maintenance
- Fall-Planted, Early Spring-Flowering Perennial
- Early Spring Color, Beds & Borders & Containers
#ProPlantTips for Care:
Fritillaria are easy-to-care-for perennial bulb plants! They must have well-drained soil and lots of sunshine all growing season but can handle partial sun in hotter growing zones. In colder zones, plant deeper and mulch well so they can survive the winter. Add bulb fertilizer to each hole for best results and provide moderate moisture during the growing season. Deer and rodent resistant, there are no pests or disease issues to worry about. In fact, their only issue is with soggy soil that will rot the bulbs. Deadhead once the flowers fade but keep the leaves to make food for the bulbs, then prune them back when the foliage yellows.
- Full Sun or Partial Shade
- Moderately Moist Well-Drained Soil
- Deadhead After Bloom, Prune to Ground When Leaves Yellow
- Very Cold & Heat Hardy
- Deer & Rodent Resistant
Order your Rubra Fritillaria today. We suggest you start thinking of answers to your neighbor's questions now since this fun variety is known for eliciting a lot of questions. Nature Hills will ship your bulbs based on the correct planting time for your growing zone!
