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Clematis Blue Boy

Solitary Clematis

Steel-blue coloured blooms.

  • »  Flower Colour: Steel-blue
  • »  Flower Size: 6 cm
  • »  Bloom Time: All summer
  • »  Pruning Group: 3
  • »  Group: Diversifolia
  • »  Nodding, bell-shaped flowers with yellow stamens
  • »  Leaves are mid-green, ovate to elliptic, 12 cm long

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  • Category:Vines
  • Hardiness Zone:3
  • Height:150-175 cm
  • Spread:80-100 cm
  • Bloom Color: Blue (deep)
Full Sun
Soil Moisture
Moist to Average
Attracts Wildlife
Attracts Hummingbirds
Growth Rate
Cut Flower/Foliage
Long Blooming
Flowering Time
Lt. Sum-Fall
Foliage Color
Landscape uses
Screening (privacy)
Planting instructions
Container Plants
Additional Information about Clematis 'Blue Boy'

Clematis are grouped into three different categories for pruning and maintenance:

Group 3: Late Flowering - Flowers form on the terminal 60-90 cm of the current season's growth. Some bloom as early as midsummer and continue into the fall. In early spring, prune each stem, leaving the lowest 2-3 buds. The new growth can be tipped back when it reaches about 30 cm, to induce better branching and flowering.

Growing & Maintenance Tips for Clematis 'Blue Boy'

Clematis grow best in a rich, moist to average, well-drained soil, in full sun. Protection from intense afternoon sun is beneficial. Large-flowering bi-colours, reds and blues, may fade quickly if planted in direct sun. Roots need a cool environment to thrive; it is recommended planting a ground cover or shallow rooted perennial to shade the roots; mulching is suggested. Plant the crown 3-5 cm below the soil's surface. Clematis are slow to establish and initially need to be tied to a trellis or fence to begin climbing.