GENERAL INFORMATION
Scientific Name: Coreopsis verticillata
CommonName: Tickseed
Hardiness Zone: 5a - 9b
Hardiness Degree: -30°F (-30°C)
Blooming Season: Late Spring, Summer
Plant Habit: Mounded
Characteristics: Deer Resistant, Drought Tolerant, Heat Tolerant
Water: Light
Fertilizer: Once a month
Spacing: 18 - 24" (46 - 61cm)
Height: 18" (46cm)
Width: 24" (61cm)
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 ppm IBA
Mist: Low
Fertilization: 50-75 ppm N
Pinching: Pinch once in the liner stage and once after transplant for best results.
Transplanting: 35-42 days after sticking
FINISHING
Media pH: 5.8-6.2
Temperature: Days: 55 to 80°F (13 to 27°C)
Light Level (fc): 5,000 to 8,000
Vernalization: Beneficial to enhance bulking and plant size.
Daylength: Long day obligate
Watering: Allow media to dry moderately between watering.
Fertilization: Use a balanced fertilizer at a rate of 125 to 150 ppm.
Pinch After Transplant: Recommended
Plant Growth Regulators: PGRs generally not needed
Pests and Fungal Diseases: Powdery mildew, aphids
CROP SCHEDULING
1–qt. (10–cm) pot, 1 plant per pot: Not recommended
1–gal. (15–cm) pot, 1 plant per pot: Unrooted: 15-17 wks Rooted: 10-12 wks
2 to 3–gal. (25 to 30–cm) pot, 3 plants per pot: Unrooted: 19-22 wks Rooted: 12-14 wks
Bloom Months: May to July