GreenlyWhen to plant tomato in Rosario
In Rosario, tomato: sow seedlings around 29 May for the greenhouse and around 19 June for open ground; plant into a greenhouse around 25 July; plant out into open ground around 15 August.
Last spring frost around 16 July, first autumn frost around 15 June. Frost-free days: 334 days.
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.