Greenly Garden

When to plant watermelons in Victoria: 13 June – 11 September

In Victoria, watermelon: sow for seedlings from 25 April to 14 August; plant into a greenhouse from 23 May to 11 September; plant out into open ground from 13 June to 11 September. For plants and seeds, the places nearby include Wildwood Outdoor Living Centre (garden centre, 8 km); addresses and opening hours are below.

Watermelon in Victoria: soil, season and weather

In Victoria the soil, not frost, sets the date: the last frost is over around 1 March, but the top 7 cm of soil reaches 18 °C — the minimum on the watermelon card — only around 13 June, 104 days later.

Last spring frost1 March
Top 7 cm of soil at 18 °C13 June, 104 days after the last frost
Into an unheated greenhouse23 May – 11 September; May outside: 9.8 °C at night, 18 °C by day; card 18–35 °C
First autumn frost21 December, 191 days after the start
Days in the bed to the first harvest (card)59
First harvest, if planted in this window11 August – 9 November
Days left for picking132
Daylight15:15 on 16 May, 16:04 on 13 June
Watering outdoors when fruiting (card)every 5 days; the driest month, July, has 2 rainy days

The same dates in Victoria hold for Cucumber, Bell Pepper, Eggplant, Zucchini and Pumpkin.

Watermelon in Victoria: care after planting

Planted on 13 June: in the first weeks water every 5 days.

Feeding, by the card’s schedule from that day:

  • 13 June — feed: balanced (NPK)

Pests and diseases of watermelon to watch for:

Dates count from the first planting day of the window above; a later planting moves them by as many days.

Weather in Victoria during the watermelon season

No month of the season averages above the watermelon card's 18–35 °C by day; the warmest, August, averages 24.6 °C. Months that stay below 18 °C even by day on average: October (14 °C), November (9.8 °C) and December (7.2 °C). Nights average below 18 °C in every month of the season, from 3.4 °C to 15.3 °C.

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
June20.812.132616:05
July24.414.611215:44
August24.615.322414:23
September20.112.958812:39
October148.71261410:54
November9.85.8174189:15
December7.23.4177198:21

ERA5 2016–2025, Open-Meteo

Watermelon in nearby cities

Around Victoria, Kelowna is 11 days earlier and Olympia 13 days later.

CityDistanceDateDifference
Vancouver96 km22 June – 8 August9 days later
Seattle120 km21 June – 15 August8 days later
Olympia159 km26 June – 6 August13 days later
Kelowna325 km2 June – 22 July11 days earlier
Portland328 km17 June – 13 August4 days later
Salem389 km6 June – 8 August7 days earlier

Where to buy watermelon plants and seeds near Victoria

Buy plants ready to set out from 13 June to 11 September (from 23 May to 11 September for an unheated greenhouse); seed for raising your own is sown from 25 April to 14 August. Within 15 km of Victoria OpenStreetMap lists 6 garden centres, 1 farm-supply shop, 7 markets and 6 farm shops (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Each window starts on the Greenly calendar date and ends on the last day that still leaves the crop’s days to harvest (from its card) before the average first autumn frost, plus six weeks of picking for crops harvested over weeks (tomatoes, peppers, aubergines, cucumbers, courgettes, pumpkins, watermelons, beans) — our rule; earlier in the window is safer.

Questions

When to plant watermelons in Victoria?

In Victoria, watermelon: sow for seedlings from 25 April to 14 August; plant into a greenhouse from 23 May to 11 September; plant out into open ground from 13 June to 11 September.

When to sow watermelons for seedlings in Victoria?

Sow for seedlings from 25 April to 14 August.

When is the last spring frost in Victoria?

Last spring frost around 1 March, first autumn frost around 21 December.

Other crops in Victoria, with their dates