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The Duchess of Cornwall™ Clematis

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This product does not ship to: Idaho
  • Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
  • Mature Height 4 - 5 Feet
  • Mature Spread 1 - 2 Feet
  • Growing Zones 4 - 9
  • Use As A Thriller In Containers

You would be hard pressed to find an easier clematis than the newly introduced Duchess of Cornwall™. The exceedingly large petaled flowers are a deep blue-purple hue that provides an understated elegance for short pergolas, trellises, and obelisks. Place this gorgeous climber near a seating area or walkway where the many pollinator visitors can be seen. Beneficial insects, native bees, and hummingbirds cannot resist the wide open shape and sweet nectar of the long-lasting flowers. 

Clematis uvaria ‘Duchess of Cornwall’  is a group 3 Clematis and requires minimal seasonal maintenance. Deer rarely browse on the woody stems or rough leaves, although they may be tempted to taste a scrumptious flower or two. While most gardeners expect to find Clematis vines growing up arches or other supports, they also work as trailing plants in large planters filled with other seasonal bloomers.

The Duchess of Cornwall™ Clematis Care

Clematises prefer their heads in the sun and feet in the shade. This means that they thrive when planted in full sun with lower-growing plants to help shade and cool their root zone. Try pairing them with cottage garden classics like peonies or shasta daisies, or consider more modern-looking plants such as low-growing ornamental grasses or edible plants like herbs. 

Keep this clematis well watered during the blooming period for a display of color that lasts for a long time. Fertilize plants using a granular, slow-release feed early in the spring after pruning to support steady growth all season long. Mulching seasonally with arborist chips or shredded leaves will suppress annual weeds and enrich the soil around clematis

The type 3 clematis is the easiest of all to prune. Cut back all top growth to within 12 inches of the soil late in the winter or early spring. This clematis flowers on new growth and will continue flowering well into the fall. Deadheading will help to remove any seed heads but is not entirely necessary. Hybrid cultivars are not particularly aggressive self-seeders, and the fuzzy seed heads add texture later in the fall as the foliage turns shades of orange and red. 

The Duchess of Cornwall™ Clematis Spacing

The Duchess of Cornwall™ has a narrow spread of 12-16 inches, making it easy to incorporate into an established garden bed or maintain in a decorative container. Plant perennials or shallow-rooted shrubs 12 inches from the base of the clematis to allow good air circulation and ground coverage. Containers will need to have a 16-inch diameter or greater to allow space for adding other trailing or filler plants.

The Duchess of Cornwall™ Clematis Information

USDA Hardiness Zones: 4 - 9
Plant Type: Perennials
Light Exposure: Partial Sun to Full Sun (At Least 5 Hours of Direct Sunlight)
Mature Height: 4 - 5 Feet
Mature Spread: 1 - 2 Feet
Spacing: 1 - 2 Feet
Habit: Climbing, Trailing
Flower Color(s): Blue, Purple
Flower Description: Violet Blue
Bloom Period: Summer to Fall
Foliage Type: Evergreen, Herbaceous
Foliage Color(s): Green
Foliage Description: Green Shades
Seasonal Interest: Spring Flowering, Summer Flowering, Fall Flowering, 3 Season Interest
Watering: Average
Resists: Deer, Disease, Pests & Insects
Tolerates: N/A
Attracts: Butterflies, Hummingbirds
Container Role: Thriller
Uses: Specimen or Focal Point
Features: Attracts Pollinators, Low Maintenance
Common Name: The Duchess of Cornwall™ Clematis
Other Name(s): Leather Flower, Old Man's Beard, Traveller's Joy, Vase Vine, Virgin's Bower
Scientific Name: Clematis uvaria 'Duchess of Cornwall'

Container Sizes

Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on; type of plant, time of year, last pruning & many other factors.

4.5 Pot

4.5" Pot
 Also Known As:
   4.5" Container

 Plant Age:
   ~ 6 months
 Plant Size:
   ~ 3"-6"
 Pot Size:
   ~ 4.5"H x 3.75"W
   1.42 quarts

Quart Pot

Quart Pot
 Also Known As:

 Plant Age:
   ~ 6 months - 1 year
 Plant Size:
   ~ 4"-8"
 Pot Size:
   ~ 4.75"H x 4.5"W
   1.50 quarts

2.5 Quart

2.5 Quart
 Also Known As:
   2.5 Quart Pot

 Plant Age:
   ~ 1 - 2 years old
 Plant Size:
   ~ 8"-12"
 Pot Size:
   ~ 6.5"H x 6.5"W
   2.20-2.30 quarts

#1 Pot

#1 Pot
 Also Known As:
   #1 Container
    1 Gallon
 Plant Age:
   ~ 1 - 2 years old
 Plant Size:
   ~ 10"-14"
 Pot Size:
   ~ 7"H x 7.75"W
   2.26-3.73 quarts

#2 Pot

#2 Pot
 Also Known As:
   #2 Container
    2 Gallon
 Plant Age:
   ~ 1.5 - 3 years old
 Plant Size:
   ~ 12"-18"
 Pot Size:
   ~ 9.5"H x 9.5"W
   1.19-1.76 gallons

#3 Pot

#3 Pot
 Also Known As:
   #3 Container
    3 Gallon
 Plant Age:
   ~ 2 - 4 years old
 Plant Size:
   ~ 12"-30"
 Pot Size:
   ~9.5"H x 11"W
   2.32-2.76 gallons

For more detailed information, please click here.

Plant Addicts Guarantee (Included On All Plant Orders)

Plant Addicts always guarantees your plant(s) will arrive happy & healthy. However, plant(s) are being shipped through the mail & sometimes accidents happen. If the plant is dead, has dried out roots or the incorrect item was shipped, just notify Plant Addicts within 3 days upon delivery. We may ask for pictures but will try to make it as easy as possible for you. Please note, plant(s) with damaged branches or wilted leaves will not qualify for this guarantee. Plants are very resilient and will rebound quickly when cared for correctly. 

For more information on how to care for your new plants, please click on our guide below.

Guide: How to Care for Your New Plant(s)

Plant Addicts Warranty - 1 Year (Extra Purchase Required)

We encourage all plant lovers to purchase the Plant Addicts Warranty, whether you're a new gardener or an expert. There are many variables outside of anyone's control that can cause a plant to die. Hungry animals, drought, poor soil conditions, over watering, diseases & pests are all good examples of what can cause plants to die. The Plant Addicts Warranty is a 1 year warranty protecting you from all of the unknowns and will replace your plant if something were to happen to it.

The warranty is purchased on a per plant basis and must be purchased at the same time as the plant(s). We will cover 100% of the price of the plant, but the warranty does not cover shipping costs. SImply let us know if your plant has died within 1 year of receiving it and we will get you a new one shipped out as soon as possible (depending on the time of the year and availability). We may ask for photos for documentation purposes, but we try to make the process as easy as possible.

For more information, please click on our page below.

Guarantee and Warranty

Plant Shipping

Below are some factors we consider when determining when to ship the plants depending on the timing of the order.

Winter to Early Spring

We ship only when it's warm enough to plant in your growing zone.
Sometimes plants aren't completely ready to sell and ship in early spring. We will wait until the plants are ready before shipping so you don't get a subpar product.
For Southern plants we will be able to ship much earlier than plants coming from our northern nursery.


If there is extreme heat we may delay shipping for a week or several weeks.
We review what areas the plants are traveling through as well as your location.

Fall into Winter

We’ll ship plants out all the way up to the end of the fall planting season!


Get your order in early to reserve your plants for Spring planting!

Once your plant is shipped you’ll receive an automated email with tracking information. 

Click here for more detailed shipping information.

Planter Shipping

Standard Colors: 2-3 business days

Special Order Colors: 8 weeks - this is due to the planter being custom made with the color(s) of your choice

Please Note: On special orders there can not be any cancellations