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Suitable zone

Growing Castor bean in Occitanie

3 adapted varieties

FranceCfb — oceanic temperate
In short

In Occitanie, the local agronomic conditions (Cfb — oceanic temperate climate, 1569 growing degree days, clay loam soil at pH 6.7, 307 frost-free days) allow castor bean cultivation.

Favorable growing period: April to October.

Recommended varieties: LS Harold, LS Peter, LS Suzi

Climate

21.1°C
Summer temperature
4.7°C
Winter temperature
706 mm
Annual rainfall
1569
Growing degree days (base 10°C)
307 days
Frost-free period

Limited growing degree days (1569 GDD). Choose the earliest maturing varieties.

Notable summer water deficit (-106 mm). Pick drought-tolerant varieties.

Long frost-free season (307 days), allowing broad crop cycles.

Sowing calendar

Favorable growing period: April to October.

Soil & recommendations

Topsoil pH (0-30 cm)
6.7
Texture
clay loam
Organic matter
2.54%

Neutral pH (6.7), suitable for most crops.

Recommended varieties

Recommended varieties: castor bean, Occitanie
VarietyTypeEarlinessYield potentialSowingHarvestSuitability for the region
LS HaroldDwarf castor beanVery early flowering and maturity9/10allow 0.8 m between rows and 0.5 m between plantsMechanical harvest7/10
LS PeterDwarf castor beanVery early10/10allow 0.8 m between rows and 1 m between plantsMechanical harvest7/10
LS SuziSemi-dwarf castor beanEarly10/10allow 1 m between rows and 1 m between plantsMechanical harvest7/10

Risks & watchpoints

Key agronomic watchpoints in this zone:

  • Summer heat stress: 8/10.

Other regions to grow castor bean

Agronomic summary

Castor bean finds compatible conditions in Occitanie: 1,569 GDD cover the short cycle (130–170 days) of dwarf castor, 307 frost-free days, clay-loam soils at slightly acidic pH 6.7. LS Suzi, LS Marilou and LS Peter open diversification prospects on difficult lands or innovative cropping plans, particularly in Lauragais and the lower Rhône Occitanian plain, as a complement to sunflower.

Frequently asked questions

Which castor bean variety is best suited for Occitanie?

The varieties recommended above are pre-selected based on local climate, soil and disease pressure. Top picks combine adapted maturity, yield stability and the specific disease tolerances needed in Occitanie.

When is the best time to sow castor bean in Occitanie?

The favorable sowing window is typically from April to October. Exact timing depends on soil temperature (>10°C at 5 cm), weather forecast and your local agronomist's advice.

What yield can I expect from castor bean in Occitanie?

Yields depend on variety, agronomic management and the season. Under typical Occitanie conditions with good practices, our adapted varieties target stable, competitive commercial yields. Precise ranges are available on request.

Updated in 2026 · Data sources: SoilGrids v2.0 (ISRIC), Open-Meteo (ERA5, 1991–2020)

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