Jackman Clematis
Clematis 'Jackmanii Superba'
Planting & Care
Planting & Care
Delivery and Shipping
Delivery and Shipping
Preorder Shipping Schedule
We ship your plants when it's safe to transport them to your zone. Dates are estimated and subject to weather delays.
| Zone 3-4 | Week of March 30th |
| Zone 5 | Week of March 16th |
| Zone 6-12 | Week of March 2nd |
Shipping Rates
Ships in 7-10 business days • Tracking provided • Weather protected
| Under $50 | $9.99 |
| $50 - $99.99 | $14.99 |
| $100 - $149.99 | $16.99 |
| $150 - $198.99 | $24.99 |
| $199+ | FREE |
✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee
Understanding Our Container Sizes
At Nature Hills, our plants are sold in industry-standard nursery containers. You will notice we use the word "container" rather than "gallon." Container numbers follow a nursery trade size standard, not liquid volume. The number tells you the plant's size category and general maturity level. A larger container means a more established plant with a stronger root system.

Container Sizes
Quart
Plant age: 6 months to 1 year
Best for: Ground covers, perennials, ornamental grasses
What to expect: Our smallest and most affordable size. Well-suited for planting in multiples across a large area. Allow 1 to 2 seasons for full establishment.
#1 Container
Plant age: 1 to 2 years
Best for: Shrubs, perennials, smaller trees
What to expect: About the size of a large coffee can. A well-developed root system in a manageable size. Good value choice when you have time to let the plant grow into the space over a season or two.
#2 Container
Plant age: 2 to 3 years
Best for: Shrubs and trees where you want faster establishment
What to expect: A noticeable step up from a #1 in both plant size and root development. Good choice when you want visible presence without going to a larger size.
#3 Container
Plant age: 3 to 4 years
Best for: Most plants, most situations — flowering trees, shade trees, evergreen shrubs
What to expect: Our most popular size. Strong, developed root system. Plants in a #3 container make an immediate visual impact from day one. If you want a head start rather than waiting seasons for a plant to fill in, this is typically the right choice.
#5 Container and Larger
Plant age: 4 to 5+ years
Best for: Specimen plants, privacy screens, maximum instant impact
What to expect: Large, mature plants ready to make an immediate statement in your landscape. We also carry #7 and larger sizes for select varieties.
Why "Container" and Not "Gallon"?
Nursery container sizes follow an industry trade standard established for the nursery and horticulture industry. The number is a size designation, not a measurement of liquid volume. Actual soil volume varies by plant type, root mass, and growing medium. Using "container" is the accurate industry term. When you see #1, #2, or #3, think of it as the plant's size tier, not a gallon measurement.
Root Pouch Containers
Some Nature Hills plants arrive in a Root Pouch, a breathable fabric container made from 100% recycled materials. Root Pouches encourage denser root development through air pruning, which discourages root circling and promotes a stronger, more fibrous root ball at the time of planting.

There are two types. Knowing which one you have changes how you plant:
- Degradable (brown or tan fabric): Plant the entire pouch directly in the ground. The fabric breaks down naturally in the soil over time.
- Non-degradable (black or gray fabric): Remove the pouch before planting. Cut the bottom open with scissors, then peel the sides away. The fibrous root ball will hold its shape.
Not sure which type you have? Check the tag on your plant or contact us and we will confirm.
Full Root Pouch planting guide
Choosing the Right Size
| Size | Plant Age | Best For |
|---|---|---|
| Quart | 6 mo to 1 yr | Ground covers, perennials, grasses. Budget-friendly for mass plantings. |
| #1 Container | 1 to 2 yrs | Shrubs, perennials, small trees. Value choice for patient gardeners. |
| #2 Container | 2 to 3 yrs | Shrubs and trees where you want faster establishment. |
| #3 Container | 3 to 4 yrs | Most plants. Immediate visual impact. Our most popular size. |
| #5 and larger | 4+ yrs | Specimen plants, privacy screens, maximum instant impact. |
Still not sure which size is right for your project? Our plant specialists are happy to help. Contact us and we will point you in the right direction.
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
Description
Jackmanii Clematis Adds Dramatic Purple Flair
The Jackmanii Clematis (Clematis x jackmanii) 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 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 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 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.
Specifications
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Botanical Name
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Class
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Species
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Cultivar
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Growing Zones
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Height
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Width
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Sunlight
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Growth RateModerate
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Flower Color
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Leaf Color
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Bloom PeriodEarly Summer, Late Summer
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Does Not Ship ToAK, HI, ID, MT, OR, PR
Characteristics



