Tournesol
Helianthus annuus
Helianthus annuus est une annuelle haute produisant de grandes fleurs jaunes, cultivée pour ses graines oléagineuses, ornementale et melifère.
Full sunWater mediumAnnual3 months of harvest
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When to sow, plant and harvest
Temperate climate · mainland FranceJFMAMJJASOND
Sowing
Planting
Harvest
Characteristics
General
- Plant type
- Grain
- Life cycle
- Annual
- Growth habit
- Bushy
Growing conditions
- Nutrients
- Medium
- Soil type
- Silty
- Water needs
- Medium
- Exposure
- Full sun
- Hours of sun
- 6 h
- Cold hardiness
- Low
- Heat tolerance
- Moderate
Sowing and planting
- Sowing method
- Direct in open ground
- Sowing depth
- 30 mm
- Minimum temperature
- 10 °C
- Propagation
- Cuttings