GreenlyWhen to plant tomato in Marseille
In Marseille, tomato: sow seedlings around 25 January for the greenhouse and around 15 February for open ground; plant into a greenhouse around 23 March; plant out into open ground around 13 April.
The dates follow the Greenly calendar: open ground a week after the last frost once the soil is warm enough for the crop, frost-hardy crops three weeks before it, an unheated greenhouse three weeks earlier, seedlings sown so they are ready on the day. In a cold year allow a week or two more.