Vegetative Variety

Achillea millefolium Milly Rock™

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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
(1 ppp)
Week color desired
URC stick week
Liner transplant week
(1 ppp)
*Plantings after week 25 finish faster
Achillea millefolium Milly Rock™ Yellow Terracotta
Achillea millefolium Milly Rock™ Yellow
Achillea millefolium Milly Rock™ Red
Achillea millefolium Milly Rock™ Rose
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Propagation Guide
Media EC/pH: EC 1.0-1.25 mmhos/pH 5.8-6.2
Soil Temperature: 70-72°F (21-22°C)
Rooting Hormone: 500-1,000 ppm IBA
Mist: Low to moderate
Fertilization: 50-75 ppm Nitrogen
Pinching: Pinch to remove flower buds.
Transplanting: 35-42 days after sticking
Comments: Mist enough to rehydrate cuttings. Do not over-mist beyond Day 2 or 3. Do not stick cuttings too deep. Tall leaves can be trimmed if necessary.
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): 2,500 to 4,500
Vernalization: No
Daylength: Long day facultative
Watering: Moderate
Fertilization: Use a balanced fertilizer at a rate of 150 to 175 ppm N.
Pinch After Transplant: Typically not required
Plant Growth Regulators: PGRs generally not needed
Pests and Fungal Diseases: Aphids on the buds