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Suitable zone

Growing Corn in Grand Est

12 adapted varieties

FranceCfb — oceanic temperate
In short

In Grand Est, the local agronomic conditions (Cfb — oceanic temperate climate, 927 growing degree days, silty clay loam soil at pH 7, 248 frost-free days) allow corn cultivation.

Favorable growing period: May to September.

Recommended varieties: LS Marelia, ZETA 105, ZETA 115 S

Climate

17.7°C
Summer temperature
1.3°C
Winter temperature
806 mm
Annual rainfall
927
Growing degree days (base 10°C)
248 days
Frost-free period

Limited growing degree days (927 GDD). Choose the earliest maturing varieties.

Notable summer water deficit (-294 mm). Pick drought-tolerant varieties.

Long frost-free season (248 days), allowing broad crop cycles.

Sowing calendar

Favorable growing period: May to September.

Soil & recommendations

Topsoil pH (0-30 cm)
7
Texture
silty clay loam
Organic matter
2.03%

Neutral pH (7), suitable for most crops.

Recommended varieties

Recommended varieties: corn, Grand Est
VarietyMaturity (FAO)TypeUseSuitability for the region
LS MareliaFAO 130Flint - soft flintGrain and silage8/10
ZETA 105FAO 105Flint – soft flintGrain and silage8/10
ZETA 115 SFAO 115FlintSilage and grain8/10
LS NorviaFAO 100Flint to semi-flintSilage8/10
ZETA 125FAO 125Flint – soft flintGrain and silage7/10
ZETA 110 SFAO 110FlintSilage and grain7/10
LS ParisianaFAO 120Soft flintGrain and silage7/10
ZETA 120FAO 120Flint – soft flintGrain and silage7/10
LS MARIDOLFAO 120Flint – so flintSilage and grain7/10
LS BAJKALIAFAO 120Flint – so flintSilage7/10
LS MaridolFAO 120—Silage - grain7/10
TA57-23FAO 120Flint to semi-flintSilage7/10

Risks & watchpoints

Key agronomic watchpoints in this zone:

  • Drought stress: 6/10.

Agronomic summary

Grain maize is important in the Alsace plain (fertile loess, warm semi-continental climate) and progresses in Lorraine. The 927 regional GDD impose ultra-earlies (LS Marelia, ZETA 105, LS Bajkalia FAO 120) for rainfed grain, except in Alsace where mid-earlies are accessible. Irrigation is a major asset given the deficit (-294 mm). Silage remains competitive in Lorraine livestock zones.

Frequently asked questions

Which corn variety is best suited for Grand Est?

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 Grand Est.

When is the best time to sow corn in Grand Est?

The favorable sowing window is typically from May to September. 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 corn in Grand Est?

Yields depend on variety, agronomic management and the season. Under typical Grand Est 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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