GreenlyWhen to plant watermelon in Melbourne
In Melbourne, watermelon: sow seedlings around 20 September for the greenhouse and around 11 October for open ground; plant into a greenhouse around 22 October; plant out into open ground around 12 November.
Last spring frost around 4 August, first autumn frost around 25 June. Frost-free days: 325 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.