Guernsey Flute™ Clematis (Clematis ‘EviGsy153’) illuminates the garden with large, pure white, star-shaped flowers graced by subtle red anthers. Blooming from late spring well into early autumn, it delights with a unique champagne flute-like bud stage that gradually unfolds into a broad, showy blossom. Reaching a petite 3–4 feet tall, this vine is a perfect choice for small gardens, containers, or the front of a mixed border. Its prolonged blooming period and easygoing nature make it a standout among white Clematis varieties.
The elegant blooms retain their crisp color even in partial shade, where the plant happily thrives. Bred by the renowned Raymond Evison, Guernsey Flute™ combines compact form with reliable flowering, allowing it to shine on a simple tuteur or trellis. This Clematis is also known for its deer resistance, reducing the stress of damage in wildlife-prone areas. Enjoy it as a companion for colorful annuals in patio planters or as a welcoming accent near entryways.
Guernsey Flute™ Clematis Care
Plant in moist, well-draining soil, positioning the crown 2–4 inches below ground level to protect dormant buds. A neutral to slightly alkaline pH often works best, and consistent watering encourages the deep roots to establish. Provide at least four hours of daily sun, but offer some afternoon shade in warmer regions. Feeding with a balanced, low-nitrogen fertilizer in spring helps maintain steady growth and generous flowering.
Light pruning in early spring (Pruning Group 2) shapes the vine and removes weak or damaged stems. Deadhead spent blooms to stimulate additional bud formation. Container-grown Clematis may need extra watering during hot spells, and a layer of mulch or companion plants keeps roots cool. In climates with freezing winters, consider adding a protective mulch layer around the base.
Guernsey Flute™ Clematis Spacing
Allow roughly 2 to 3 feet between plants when creating a screen or grouping, ensuring good airflow and room for each vine. For single-specimen accents, give the vine enough open space to spread naturally on its support. In containers, opt for a pot at least 12 to 14 inches in diameter to accommodate the root system and the vine’s upward growth.
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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.

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

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
Volume:
2.20-2.30 quarts

#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
Volume:
2.26-3.73 quarts

#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
Volume:
1.19-1.76 gallons

#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
Volume:
2.32-2.76 gallons

#5 Pot
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons

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Arrival Guarantee
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Pre-Ordered Plants
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated Spring Shipping Schedule
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
Growing Zone | Estimated Ship Week |
---|---|
Zone 10 | March 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants Shipping Now
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.