Clematis Chelsea ('Evipo100'PBR) (Boulevard Series)

RHS Plant Profile
clematis [Chelsea]

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clematis [Chelsea] RHS

Synonyms

Clematis 'Evipo100'PBR

Climber Wall Shrub
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A very compact climber up to 1m high, with green leaves, and flowers, 8-10cm across, composed of six to eight sepals which on the inside are white tinged with pale violet-blue and with pale green midveins, and on the outside are white with green bars, and pale greenish yellow stamens, from early summer to autumn; many clematis are visited by bees for pollen, and some also provide nectar

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
0.5-1 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun Partial shade
Aspect
South–facing or East–facing or North–facing or West–facing
Exposure
Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Ranunculaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Climbing
Potentially harmful
Skin irritant. Wear gloves and other protective equipment when handling. Pets (rabbits): Harmful if eaten. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Clematis can be deciduous or evergreen shrubs or herbaceous perennials, mostly climbing by twining leaf-stalks, and often with showy flowers. Some have attractive fluffy seedheads in autumn
Name Status
Trade

How to Grow

Cultivation

Grow in full sun or partial shade in containers (at least 45cm deep and wide) or in the ground, in cool, moisture-retentive, well-drained soil, with the crown 5-8cm deep to encourage new shoots to grow from below ground level; keep the base of the plant and the roots cool and shaded by other plants or a layer of pebbles or flat stones; for more advice, see clematis cultivation

Propagation

Propagate by internodal leaf-bud semi-ripe cuttings taken from spring to late summer, or by layering from late winter to spring

Suggested planting locations and garden types

  • City and courtyard gardens
  • Patio and container plants
  • Cottage and informal garden
  • Flower borders and beds
  • Wall side borders

Pruning

Pruning (clematis) group 2, light prune for early flowers. Remove dead and damaged stems before growth begins in early spring. Trim all remaining stems to strong buds. Hard prune for easy-care option using Pruning (clematis) group 3

Pests

May be susceptible to aphids, capsid bug, caterpillars and glasshouse red spider mite; flowers may be damaged by earwigs; young shoots are vulnerable to slugs and snails; container-grown plants may be susceptible to vine weevils

Diseases

May be susceptible to honey fungus (rarely), clematis wilt and clematis slime flux