Vegetative Variety

Caryopteris clandonensis Grand Bleu®

Download Plant Culture

Data is gathered from our West Grove, Pa., trials (Zone 6a). Southern growers: expect 1-2 weeks earlier finishing. Northern growers: 1 week slower. Consider summertime scheduling accurate. Dates based on a standard 72 liner size.

Week color desired
URC stick week
Liner transplant week
Late-Summer/Fall
 
Gallon
(1 ppp)
 
 
 
 
Caryopteris clandonensis Grand Bleu®
icon of world
Visit website for variety description and resources.
Propagation Guide
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 Guide
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