What to sow in your garden right now?

After the last frosts: on average from 29 April in northern France, as early as 18 March in a Mediterranean climate and not before 24 May in the mountains. Sow them in the warm, under cover, 6 to 8 weeks before the last frost.

It all comes down to frost. The last spring frost comes on average around 4 March in a Mediterranean climate, but around 10 May in the mountains, and it moves three to four days later for every 100 metres of altitude. Semiterra times every sowing on the frost dates of your town.

In October, in northern France, you can sow or plant for example: cabbage, corn salad, lettuce, mustard greens and onion. The season lasts longer in mild climates and ends earlier in the mountains: choose your town to see your own dates.

From the daily records of thousands of stations of the national weather services (Météo-France, Deutscher Wetterdienst, MeteoSwiss, GeoSphere Austria…) between 1991 and 2020, corrected for the altitude of your town. The date shown is an average: one year in two, the last frost comes later. For frost-tender crops, keep a margin, or adjust your date in the tool if you know your garden well.

Sometimes. A few pairings are backed by studies, such as French marigolds against tomato whitefly or onions against carrot fly, but most rest on tradition. Each plant page shows the level of evidence of every pairing.

No. Semiterra is free and requires no sign-up: your town is simply remembered in your browser.