Jackmanii Superba Clematis
Clematis 'Jackmanii'
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Jackmanii Superba Clematis is backordered and will ship as soon as it is back in stock.
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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
Jackmanii Superba Clematis highlights at a glance!
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Botanical Name
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Brand
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Growing Zones4, 5, 6, 7, 8
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Growth RateModerate
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Mature Height
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Mature Width
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Flower Color
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Bloom PeriodEarly Summer, Late Summer
Characteristics
Where To Plant
When To Prune
- Early Spring
Water & Moisture Needs
- Moderate
Sunlight Needs
Soil Needs
- Well Drained Soil
Growing Zones
Jackmanii Superba Clematis Adds Dramatic Purple Flair
The Jackmanii Superba Clematis (Clematis x 'Jackmani Superba') is a legendary garden performer beloved for its stunning deep purple blooms and vigorous vining habit. This hybrid Clematis, introduced in 1862, is one of the oldest and most popular large-flowered Clematises in cultivation today!
Jackmanii Superba is a reblooming variety that bursts into bloom in early to mid-summer and often returns for an encore in late summer. Each flower boasts a royal richness, up to 6 inches across, and is adorned with velvety petals surrounding creamy stamens!
This deciduous woody vine grows 8 to 12 feet tall and about 3 to 6 feet wide, quickly covering supports with its twining leaf stalks. The leaves are compound with 3 to 5 leaflets, in a dark, lush green hue that provides an elegant backdrop for the saturated purple blooms!
Key Features
- Large, royal purple flowers up to 6 inches wide
- Reblooms from early summer to late summer
- Deciduous woody vine that grows 10–12 feet tall
- Cold-hardy in USDA zones 4–8
- Loved for trellises, obelisks, and fences
- Old heirloom garden hybrid introduced in 1862
Landscaping Uses
A showstopper on trellises, fences, or obelisks. Its name is synonymous with climbing garden beauty and Victorian garden tradition. Jackmanii symbolizes ingenuity, mental prowess, and artistic creativity, all fitting for such a regal climber.
- Train on arbors, pergolas, and obelisks for vertical flair
- Cover unsightly fences or walls with regal blooms
- Pair with Climbing Roses for classic cottage garden romance
- Let it scramble through shrubs for naturalistic whimsy
- Grow in large containers with a trellis for patio appeal and height
- Combine with other Clematis for a continuous bloom show!
- Pollinator favorites and gorgeous cut flowers
Care and Maintenance
Jackmanii Clematis is a deciduous woody vine that is easy to grow once established. It’s sun-loving, fast-growing, and adaptable across many conditions with a few tricks from Ma Nature.
Although it goes dormant in winter, it re-emerges each spring ready to climb again, and unlike some Clematises, it blooms on new wood, making pruning a breeze. Jackmanii Superba Clematis is a hardy hybrid from England, bred from Clematis lanuginosa, Clematis viticella, and other wild species. It thrives in USDA growing zones 4 through 9, showing excellent cold-hardiness and moderate heat tolerance.
- Planting Time: Spring or fall. Read how to Grow and Train Clematis Here!
- Sun Needs: Full sun to part shade (blooms best with 6+ hours of sun)
- Soil Needs: Moist, well-drained soil; avoid heavy clay unless amended; prefers neutral to slightly alkaline pH
- Moisture Needs: Moderate; keep evenly moist but never soggy
- Arborist Mulch: Use a 3–4 inch layer of arborist mulch to cool the roots; consider underplanting with low-growing perennials to shade the root zone. Like most Clematises, it adores cool roots and warm tops, a signature preference of this genus.
- Fertilization Needs: Apply a balanced, slow-release fertilizer in early spring
- Pruning Info: Group 3 Clematis. Cut back hard in late winter/early spring to about 12 inches above ground
- Special Needs/Growing Tips:
- Deer-resistant
- Not usually troubled by pests or disease
Climbing to the Top with Jackmanii
Let Jackmanii Superba Clematis climb straight into your heart and your garden structure. With lush, purple blooms and easy-care habits, this Victorian heirloom brings drama and nostalgia in one magnificent plant. It’s time to let this climber reach new heights in your garden design.
Order now at Nature Hills Nursery and we’ll ship at the proper planting time for your growing zone.
Frequently Asked Questions
Does Jackmanii Superba Clematis bloom all summer?
Yes, it begins blooming in early summer and often reblooms later in the season, especially if deadheaded.
How do I prune Jackmanii Superba Clematis?
It blooms on new wood and belongs to pruning Group 3. Cut back hard in late winter to early spring to about 12 inches tall.
Is Jackmanii Superba Clematis fragrant?
No, it is not fragrant, but its massive, deep purple blooms more than make up for it in beauty!
Can Jackmanii Superba Clematis grow in shade?
It prefers full sun for best flowering, but will tolerate part shade. Ensure the root zone stays cool.
What is the best support for Jackmanii Superba Clematis?
Trellises, fences, obelisks, arbors, and pergolas all work well; any structure it can cling to with its leaf petioles.
Is Jackmanii Superba Clematis deer resistant?
Yes, it is generally considered deer-resistant once established.
What plants grow well with Jackmanii Superba Clematis?
Try pairing with Roses and Climbing Roses, Honeysuckle, or other Group 3 Clematis for bloom layering and visual contrast.
Why Order From Nature Hills Nursery?
Nature Hills Nursery is committed to bringing the highest-quality plants to your door. Join thousands of happy customers and get all your planting needs at Nature Hills! We guarantee our plants for their first year! Check out lifelong support and landscaping ideas in our #ProPlantTips Garden Blog.
