Data specific to Clematis (Edit)
Raised by: Thorncroft Clematis
Country of Origin: UK
Typical Plant Size: Typically 6 to 8 feet
Pruning Group: Group 2 - Optional, light pruning after flowering
Bloom Diameter: Medium - between 4 to 6 inches
Bloom Color (Tepals): White/Cream/Silver hue
Bloom Shape: Semi-Double
Preferred Light: Tolerates partial shade
Tolerates full sun
Moisture Requirements: Average moisture requirements
Recommendations: Good choice for a container

General Plant Information (Edit)
Plant Habit: Herb/Forb
Vine
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 6b -20.6 °C (-5 °F) to -17.8 °C (0 °F)
Plant Height: 6 - 9 feet
Leaves: Deciduous
Flowers: Showy
Flower Color: Green
White
Bloom Size: 4"-5"
Flower Time: Summer
Propagation: Other methods: Layering
Containers: Suitable in 3 gallon or larger
Miscellaneous: Patent/Plant Breeders' Rights

Image
Trade name information:
Trade Name: Madame Maria™
Cultivar name: 'Maria Sklodowska Curie'
Common names
  • Clematis

Photo Gallery
Location: My garden in N E Pa. 
Date: 2022-05-23

Date: 2022-05-17
Uploaded by sedumzz
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2019-07-22
Location: Fairfax, Virginia (Outdoors)
Uploaded by sedumzz
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2020-06-26
Location: DISCLAIMER: This is an old photo from an old phone. I don't know why, but the photos look "deep fried". sorry about that.
Location: Fairfax, Virginia (Outdoors)
Location: Fairfax, Virginia (Outdoors)
Location: Fairfax, Virginia (Outdoors)
My hand for scale. Near perfection.
Location: Fairfax, Virginia (Outdoors)
mutant
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2019-06-30
Plant trial
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Image

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