Regal® Diamantina™ Clematis

Clematis 'Evipo039'

Nature Hills Nursery

Reblooming Diamantina Clematis Produces Stunning Double Blooms Resembling 4-6 Inch Dahlias All Season Long
Thrives in Zones 4-9
Grows 6-8 ft Tall, 3-4 ft Wide
Deer Resistant, Rabbit Resistant
Ideal for Privacy Screen in Asian Gardens

$67⁴³

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Plant Size

#1 Container

Product variants

Planting & Care

Where to Plant

Sunlight: This vine thrives with at least 6 hours of direct sunlight, which fuels the energy needed for its double blooms. While it tolerates partial shade, you may see slightly fewer flowers and looser growth in lower light conditions.
Soil: Plant in rich, well-draining soil that stays cool and moist. If you are working with heavy clay or fast-draining sand, amend the site with compost or peat moss to improve texture and moisture retention.

Watering Requirements

Clematis have a high demand for water, especially during their first year and the heat of summer. Maintain consistent moisture to prevent stress, which often shows up as wilting leaves or smaller flowers. Mulching the base of the plant is highly recommended to keep the root zone cool and hydrated while the vine climbs into the sun.

Pruning Tips

Regal® Diamantina™ is a Pruning Group 2 Clematis, meaning it blooms first on old wood and later on new growth. In early spring, gently remove any dead or weak stems and trim the remaining healthy vines just above a pair of strong, swelling buds. Avoid cutting it back to the ground, or you will sacrifice the first flush of impressive double flowers.

Fertilizer Needs

Apply a balanced granular fertilizer or a formula designed for roses in early spring to jumpstart growth. A second light application after the first wave of blooms can encourage a strong autumn rebloom. Avoid high-nitrogen fertilizers, which encourage excessive leafy growth and reduce the number of flowers.

Delivery and Shipping

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.

Plants growing in Root Pouch fabric containers, showing the breathable woven fabric construction

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 specifications
Plant Characteristics	Cold hardy, Flowering, Attracts pollinators, Container Friendly
Hardiness Zone	3a, 3b, 4a, 4b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Sunlight	Full sun, Partial shade
Height	6-8 ft
Width	3-4 ft
Watering Needs	Moderate
Preferred Soil	Peaty
Growth Rate	Moderate
Growth Habit	Bushy, Climbing, Spreading
Plant Life Cycle	Perennial
Blooms In	Fall, Spring, Summer
Flower Color	Blue, Purple
Foliage Color	Green
Pet Safety	Toxic to pets
Suitable Space	Indoors, Outdoors
Plant Name	Clematis
Botanical Name	Clematis 'Evipo039'
Species	hybrid
Cultivar	Evipo039
Class	Magnoliopsida
Does Not Ship To	AK, HI, ID, MT, OR, PR

Lavish Beauty: Regal® Diamantina™ Clematis

Transform your outdoor space into a private sanctuary with the enchanting Regal® Diamantina™ Clematis (Clematis 'Evipo039'). A reblooming Clematis, you’ll enjoy double rich blue-purple fully double blooms that look like 4-6 inch wide Dahlias! Bright sunlight reveals their cool, clear blue tones!

Compact yet impactful, this vine is an elegant addition to any outdoor setting. Transform your outdoor space into a private sanctuary with the enchanting Diamantina™ Clematis.

Unmatched Elegance and Dual Bloom Displays

Unique Blooms: Features both fully double pom-pom flowers and elegant single blooms on the same plant.
Captivating Color: Brilliant blue-violet blooms with delicate pink highlights.
Extended Show: Long-lasting flowers rebloom twice—first on last year's growth, then again after deadheading.
Compact and Versatile: Perfect for small gardens, containers, or vertical displays.
Eco-Friendly: A valuable nectar source for butterflies.
Durable: Heat tolerant, cold hardy, and widely adaptable.

Landscape Ideas for Regal® Diamantina™ Clematis

This compact easy-to-grow vine offers a lush, luxurious look, whether climbing fences, adorning arbors, or adding height to perennial container gardens. Enhance your garden's charm with these creative uses:

Entrance Features: Frame a garden gate with matching arbors wrapped in cool blue tones.
Hidden Retreats: Train Clematis up shrubs or a fence line along a winding path to create a floral focal point.
Groundcover: Let vines trail over groundcovers or mature evergreens for added texture.
Pollinator Friendly: Attracts butterflies and beneficial pollinators to your gardens.
Container Gardens: Ideal as a 'Spiller' cascading over the edges or a 'Thriller' climbing a trellis. Plant in hanging baskets or vertically on a trellis in a mixed planter.
Rose Companions: Pair with Groundcover Roses in peach, pink, yellow, or white for striking color contrast.

Wherever you plant them, Regal® Diamantina™ Clematis will captivate and impress!

Clematis Care & Maintenance

Site Selection: Choose a full sun location and plant in a well-drained site with roots mulched well to keep them cool and insulated.
Mulch: Apply a 3-4 inch deep layer of wood mulch to keep the root zone cool, leaving space around the base.
Watering Needs: Maintain evenly moist soil. Regular watering is crucial, especially for container-grown vines.
Pruning: Clematis Pruning Group 2 vine. Prune in early spring, prune back to live buds. Deadhead after the first bloom for a second flowering later in summer.
Support: Install climbing supports before planting for easy training. Use wire or mesh supports for best climbing results.

With minimal effort, you'll enjoy dazzling double blooms year after year!

Why Choose Regal® Diamantina™ Clematis?

This Clematis isn't just a plant; it's a statement piece for any garden! Perfect for gardeners of all skill levels, its compact size and versatile growing options make it an exceptional gift plant, too.

Order yours today and experience the beauty and charm of Regal® Diamantina™ Clematis for yourself!

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Frequently Asked Questions

Does Regal® Diamantina™ Clematis bloom on new or old wood, and when does it flower?

Regal® Diamantina™ Clematis blooms on both old and new wood, flowering twice per season. It first blooms on last year's growth, then reblooms on new wood after deadheading. Prune lightly in late winter to preserve old wood for the first flush of blooms.

How often should I water Regal® Diamantina™ Clematis, and can the soil dry out?

Water Regal® Diamantina™ Clematis regularly to keep soil consistently moist but well-draining. These heat-tolerant vines prefer steady moisture and shouldn't dry out completely between waterings. Check soil weekly and water deeply when the top inch feels dry, available at naturehills.com.

What type of soil and sun exposure does Regal® Diamantina™ Clematis prefer?

Regal® Diamantina™ Clematis thrives in well-draining, fertile soil with full sun to partial shade exposure. Like most clematis, it prefers cool, moist roots with the flowering portions in bright light. Plant with mulch or low perennials around the base to keep roots cool.

Is Regal® Diamantina™ Clematis suitable for growing in containers or pots?

Yes, Regal® Diamantina™ Clematis is excellent for container growing thanks to its compact growth habit. This versatile vine works as either a cascading "spiller" over pot edges or a climbing "thriller" on a trellis. Plant in hanging baskets or mixed planters with vertical support for best results.

How do you plant Regal® Diamantina™ Clematis, including depth and spacing?

Plant Regal® Diamantina™ Clematis with the crown 2-3 inches below soil level, spacing plants 3-4 feet apart. This compact variety works well in containers or ground plantings. Provide sturdy support for climbing and ensure good drainage for best results.

What is the flower size, color, and bloom duration for Regal® Diamantina™ Clematis?

Regal® Diamantina™ Clematis produces stunning 4-6 inch fully double blooms in rich blue-purple with pink highlights that resemble dahlias. This reblooming variety flowers twice per season - first on old wood, then again after deadheading. Deadhead spent blooms promptly to encourage the second flush of flowers.

Is Regal® Diamantina™ Clematis deer-resistant or prone to pests/diseases?

Regal® Diamantina™ Clematis has good natural pest and disease resistance typical of modern clematis hybrids. While deer may occasionally browse young growth, established plants are generally left alone. Plant in well-draining soil with good air circulation to prevent fungal issues.

Regal® Diamantina™ Clematis

Clematis 'Evipo039'