First-Year-Flowering Scheduling Tool
Heliopsis helianthoides Sunstruck
North: grown outdoor flowering window weeks 24-35
South: grown outdoor flowering window weeks 24-35
Heliopsis is a long-day plant. Growing outdoors it will be difficult to get into flower before week 24.
Heliopsis helianthoides Sunstruck
| Suggested Container Size. |
| Container: |
2.5 qt (1 ppp) |
| 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 ppm IBA |
| Mist: |
Low |
| Fertilization: |
50-75 ppm N when roots become visible |
| Pinching: |
Recommended after roots are established. Leave 4-5 active internodes. |
| Transplanting: |
Liner transplant week |
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| 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: |
Beneficial; aids in bulking. |
| Daylength: |
long day obligate |
| Watering: |
Allow media to dry slightly between watering. |
| Fertilization: |
Use a balanced fertilizer at a rate of 150 to 175 ppm. |
| Pinch After Transplant: |
Recommended |
| Plant Growth Regulators: |
PGRs generally not needed |
| Pests and Fungal Diseases: |
Pythium and rhizoctonia can result from overwatering. Thrips, white fly, aphids. |