Red Hollyhocks
Alcea 'Red'
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Red Hollyhocks is backordered and will ship as soon as it is back in stock.
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Plant Sentry™

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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
Red Hollyhocks 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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Pollinator Friendly
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Pruning Time
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Bloom PeriodSummer

Growing Zones 2-8
Bold spires of deep red, Red Hollyhocks (Alcea 'Red') have gorgeous silky petals in saturated color! These biennials start as rosettes of fan-shaped, ruffled green leaves, and then the following year sends up a tall 4-8 foot spire of radiant Hibiscus-esque blooms! These satiny petals bloom along sturdy stems and bloom from the bottom up for a long-lasting display!
Those mounds of foliage grow 24-36 inches wide, and look great from spring til frost! In addition to the amazing array of beneficial pollinators and beneficial insects that drop by these blooms, the leaves support the lifecycle of painted lady Butterflies as a host plant for their caterpillars!
Red Hollyhocks are very cold-hardy biennials throughout USDA growing zones 2 through 8. While short-lived, they form sprouts from the roots, and the seeds of some varieties come back year after year!
Planting and Application:
Red Hollyhocks add bright visual interest and vertical color to your garden beds and borders in the sun! Dress up a boring fenceline or rock wall, and add height by grouping these gorgeous spires together for maximum impact in the perennial garden, Rose garden, or cut flower border! These Mallow-like leaves look great even when the rosettes are not in bloom!
The classic cottage garden must-have, these tall and graceful red spikes fill out with long-lasting blooms! Any back-of-the-border in any garden will become enhanced by these ruffled silky blooms! Hollyhocks will be smothered with bees, butterflies, and other beneficial insects! Even a few Hummingbirds drop by for a visit!
- Tall Spires of Red Silky Blooms
- Long-Lasting Vertical Blooms
- Green Fan-Shaped Leaves
- Major Pollinator Magnet & Hummingbirds Galore!
- Back-of-the-Border, Vertical Interest, Cottage & Space-Saving Gardens
#ProPlantTips for Care:
Biennial Hollyhocks need full sun to grow best. Plant in a well-drained location that is protected due to its height. They may need to be protected from wind and heavy rain, so provide support from stakes, against a fence or wall for protection. Hollyhocks may self-seed, so deadhead right after blooms fade. Clean mounds in late fall after the frost kills back the foliage.
- Full Sun
- Any Well-Drained Soil Type
- Moderate Regular Moisture
- Prune After Frost
- Tolerates Black Walnut Tree Juglone & Deer Resistant
Red Hollyhocks are going to be your garden's new favorite go-to for saturated, dark red silky petals! Get vertical blooms and pollinators galore, hurry and order your own bareroot biennial blooms today at NatureHills.com!