Observed arrival · 2026-09-30

Semiterra’s commune-level sowing calendar

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Editorial interest 75/100 Selection signal · not a rating of the site

A free gardening calendar that says what to sow, plant, and harvest according to your commune’s climate and altitude.

Landing page captured for the 2026-09-30 issue.

For: Home gardeners choosing sowing dates by location
Worth noticing: Plant profiles distinguish associations supported by studies from those based mainly on tradition.

Field notes

The FAQ names meteorological services including Météo-France, Deutscher Wetterdienst, MeteoSwiss, and GeoSphere Austria as sources for frost records. It cautions that the dates are averages and recommends extra margin for frost-sensitive crops; the site also says plant profiles label the strength of evidence behind companion-planting suggestions.

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