GENERAL INFORMATION
Scientific Name: Heliopsis helianthoides
CommonName: False Sunflower
Hardiness Zone: 4b - 9a
Hardiness Degree: -30°F (-30°C)
Blooming Season: Summer, Late Summer
Plant Habit: Upright
Characteristics: Attracts Bees, Frost Tolerant
Water: Medium
Fertilizer: Once a month
Spacing: 30 - 36" (76 - 91cm)
Height: 24 - 30" (61 - 76cm)
Width: 24 - 30" (61 - 76cm)
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: Moderate to high for first 24 hours, then reduce to low
Fertilization: 50 ppm N starting at Day 7
Pinching: Recommended after roots are established. Leave 4-5 active internodes.
Transplanting: 42-49 days after sticking
FINISHING
Media pH: 5.8-6.2
Temperature: Nights: 56 to 64°F (13 to 18°C) Days: 65 to 76°F (18 to 24°C)
Light Level (fc): 5,000 to 8,000
Vernalization: No
Daylength: Long day obligate
Watering: Moderate
Fertilization: Use a balanced fertilizer at a rate of 150 to 175 ppm N.
Pinch After Transplant: Yes, in cases where there are two or less shoots.
Plant Growth Regulators: B-Nine/Cycocel sprays 2,500/1,000 ppm
Pests and Fungal Diseases: Not particularly sensitive. Use well-drained media.
CROP SCHEDULING
1–qt. (10–cm) pot, 1 plant per pot: Not recommended
1–gal. (15–cm) pot, 1 plant per pot: 9-11 wks
2 to 3–gal. (25 to 30–cm) pot, 3 plants per pot: 10-12 wks
Bloom Months: June to September