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First-Year-Flowering Scheduling Tool

Viola Halo
North: grown outdoor flowering window weeks 20-40
South: grown outdoor flowering window weeks 16-40
Spring-early summer programs
Week color desired
URC stick week  
Liner ready week  
Liner transplant week  
Late summer - fall programs
Week color desired
URC stick week  
Liner ready week  
Liner transplant week  
*Plantings after week 23 finish faster
Viola Halo Golden Yellow
Viola Halo Lemon Frost
Viola Halo Lilac
Viola Halo Sky Blue
Viola Halo Violet
Propagation Guide
Media EC/pH: EC 0.80-1.0 mmhos/pH 5.5-5.8
Soil Temperature: 70-72°F (21-22°C)
Rooting Hormone: 500-750 ppm IBA
Mist: Moderate for first 24-48 hours, then reduce to low.
Fertilization: 50-75 ppm N at Day 7
Pinching: Soft pinch recommended 25-28 days after sticking.
Transplanting: Liner transplant week
Comments: Excessive media moisture will slow rooting. Begin fertilizing at Day 7 with 75 ppm N.
Finishing Guide
Media pH: 5.5-5.8
Temperature: Nights: 50 to 55°F (10 to 13°C) Days: 60 to 65°F (16 to 18°C)
Light Level (fc): 5,000 to 8,000
Vernalization: No
Watering: Allow media to dry slightly between watering.
Fertilization: Use a balanced Pansy/Viola fertilizer at a rate of 125 to 150 ppm.
Pinch After Transplant: Recommended
Plant Growth Regulators: PGRs generally not needed
Pests and Fungal Diseases: Watch for thielaviopsis, pythium, white fly, spider mites.
Container: 2.5 qt (1 ppp)