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Caryopteris clandonensis Grand Bleu®

One of the best blue Caryopteris on the market.
  • Deep purple-blue flower clusters.
  • Compact, upright plant habit.
  • Blooms until first frost.

GENERAL INFORMATION

Scientific Name: Caryopteris x clandonensis
CommonName: Bluebeard
Hardiness Zone: 6a - 9b
Hardiness Degree: -40°F (-40°C)
Blooming Season: Autumn, Late Summer
Plant Habit: Upright
Characteristics: Deer Resistant, Heat Tolerant
Water: Medium
Fertilizer: Once a month
Spacing: 42 - 48" (107 - 122cm)
Height: 48" (122cm)
Width: 48" (122cm)
Exposure: Sun

PROPAGATION

Media EC/pH: EC 0.75-0.80 mmhos/pH 5.8-6.2
Soil Temperature: 70-72°F (21-22°C)
Rooting Hormone: 1,000-3,000 ppm IBA
Mist: Low to moderate
Fertilization: 50-75 ppm N
Pinching: Pinch once in the liner stage.
Transplanting: 35-42 days after sticking
Comments: Discontinue mist as quickly as possible once rooting occurs.

FINISHING

Media pH: 5.8-6.2
Temperature: Nights: 55 to 65°F (13 to 18°C) Days: 65 to 75°F (18 to 24°C)
Light Level (fc): 5,000 to 8,000
Vernalization: No
Daylength: Long day obligate
Watering: Allow media to dry regularly between watering.
Fertilization: Use a balanced fertilizer at a rate of 125 to 150 ppm.
Pinch After Transplant: No
Plant Growth Regulators: PGRs generally not needed
Pests and Fungal Diseases: Spider mites

CROP SCHEDULING

1–qt. (10–cm) pot, 1 plant per pot: Not recommended
1–gal. (15–cm) pot, 1 plant per pot: Rooted: 12-14 wks
2 to 3–gal. (25 to 30–cm) pot, 3 plants per pot: Rooted: 14 wks
Bloom Months: August to October
Plant Protection
'Inoveris'
(Flowering Only License)
Breeder: Darwin Perennials
Caryopteris clandonensis Grand Bleu<sup>®</sup>
Photo:  Bloom Photo:  Landscape