Greenly Garden

When to plant tomatoes in Pretoria: from 6 August

In Pretoria, tomato: sow for seedlings from 25 May; plant into a greenhouse from 16 July; plant out into open ground from 6 August. There is no autumn frost here, so the frost dates set no end to the window. For plants and seeds, the places nearby include Stodels (garden centre, 7 km) and Garden centre (garden centre, 13 km); addresses and opening hours are below.

Tomato in Pretoria: soil, season and weather

In Pretoria the soil, not frost, sets the date: the last frost is over around 23 July, but the top 7 cm of soil reaches 15 °C — the minimum on the tomato card — only around 6 August, 14 days later. Pretoria has no autumn frost in the median year, so frost does not end the season.

Last spring frost23 July
Top 7 cm of soil at 15 °C6 August, 14 days after the last frost
Into an unheated greenhousefrom 16 July; July outside: 5.6 °C at night, 19.4 °C by day; card 16–27 °C
Days in the bed to the first harvest (card)70
First harvest, if planted in this windowfrom 15 October
Daylight10:32 on 15 June, 11:01 on 6 August
Watering outdoors when fruiting (card)every 3 days; the driest month, August, has 1 rainy day

Tomato in Pretoria: care after planting

Planted on 6 August: in the first weeks water every 4 days.

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

  • 6 August — feed: balanced (NPK)
  • 3 September — feed: nitrogen

Pests and diseases of tomato 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 Pretoria during the tomato season

Days average above the tomato card's 16–27 °C in October–January (27.5–27.9 °C). Nights average below 16 °C in August–November (8.1–14.8 °C).

MonthDay, °CNight, °CRain, mmRainy daysDaylight on the 15th
August238.13111:12
September2711.513311:55
October27.813.344712:40
November27.614.8871113:22
December27.516.21121513:44
January27.916.41001213:34

ERA5 2016–2025, Open-Meteo

Tomato in nearby cities

Around Pretoria, Caxias do Sul is 17 days earlier and Bloemfontein 29 days later.

CityDistanceDateDifference
Johannesburg52 km21 August – 13 February15 days later
Bloemfontein423 km4 September – 12 February29 days later
Curitiba7,640 kmfrom 26 July11 days earlier
Lages7,652 km21 August – 3 March15 days later
Caxias do Sul7,683 km20 July – 25 February17 days earlier
Ponta Grossa7,737 km26 July – 4 March11 days earlier

Where to buy tomato plants and seeds near Pretoria

Buy plants ready to set out from 6 August (from 16 July for an unheated greenhouse); seed for raising your own is sown from 25 May. Within 15 km of Pretoria OpenStreetMap lists 15 garden centres, 6 plant nurseries and 3 markets (collected 20 October 2026).

Places: © OpenStreetMap contributors, ODbL.

Questions

When to plant tomatoes in Pretoria?

In Pretoria, tomato: sow for seedlings from 25 May; plant into a greenhouse from 16 July; plant out into open ground from 6 August. There is no autumn frost here, so the frost dates set no end to the window.

When to sow tomatoes for seedlings in Pretoria?

Sow for seedlings from 25 May.

Other crops in Pretoria, with their dates