Potatoes and tomatoes plunge while avocado prices soar

What a difference one week makes in South Africa’s fresh produce sector. Vegetable prices have taken a dramatic beating across the board, led by steep declines in everyday staples, even as select fruit commodities post impressive gains. However, the biggest surprise of the week is avocado prices, which jumped 24%.

In the latest GroundRules market update, produced by Agricultural Market Trends (AMT) and sponsored by King Price, agricultural economist Conce Moraba broke down the complex mechanics behind this week’s dramatic market shifts.

The central challenge facing producers isn’t merely the volume of produce reaching municipal floors, but whether prices have dropped far enough to reignite subdued consumer demand.

Vegetables face heavy selling pressure

Potatoes experienced a sharp crash over the past seven days. After trading above R82 per bag last week, average prices tumbled by more than 23% to R63.46 per 10kg bag.

Moraba pointed to high arrival volumes, heavy carried-over stock, weak consumer buying power, and heat-related quality issues as the core drivers. With stock continuing to build up, potato prices could face further downward pressure in the coming days.

The downturn was even more pronounced in the tomato section, where prices plunged 40% in just seven days to average R8.97 per kilogram, making them 23% cheaper than a year ago despite an 18% weekly surge in supply.

Beyond surging supply and ambient heat accelerating ripening and discolouration, Moraba highlighted a crucial structural issue: a shortage of informal bulk buyers. Known colloquially as “sweepers”, these buyers play a vital role in absorbing lower-grade stock. Without them clearing the floors, excess produce continues to weigh down baseline prices.

Meanwhile, onion markets finally offered consumers some relief as average prices dropped to R139.38 per 10kg bag. Weekend arrivals suggest the worst of the shortage may be easing.

Across other ambient lines, sweet peppers fell 15% to R12.70/kg, carrots slipped 3% to R3.90/kg, and green beans dropped 32% to R15.54/kg. Garlic held high at R90.06/kg, though upcoming supply could ease prices over the next month.

Fruits show mixed results ahead of year-end

While vegetables struggled, avocados emerged as the week’s biggest winner, jumping 24% to R20.07/kg (Fuerte averaging R35 and Hass at R14). Supply is expected to tighten further toward year-end, providing continued support.

In other fruit markets:

Table grapes climbed to R93.71/kg
Blueberries fell to R43.35/kg ahead of their November peak
Bananas rose 5% to R9.89/kg amid a temporary 10% dip in supply.
Oranges recovered 11% to R3.52/kg

The trade reality: Volume vs. margin

On the export front, Moraba cautioned that higher volumes do not automatically translate into better farmgate returns. South African avocado exports are up nearly 16% year-on-year, but European market oversupply has squeezed producer margins. Regionally, Namibian October import restrictions continue to limit vegetable flows, imposing a 30% pro-rata cap on South African carrots and onions.

As fresh produce market floors navigate seasonal temperature spikes and shifting trade flows, the key focus remains stock turnover. As Moraba summarised in this week’s Ground Rules: “A price can rise on shortage, but it takes real demand to keep it there.”

The full GroundRules fresh produce market update for 20 October 2026 is available in the accompanying video.

For the latest fresh produce prices and market insights, farmers and industry stakeholders can also join the GroundRules WhatsApp group.

AMT provides trusted agricultural market information and analysis through its market database, with GroundRules bringing that insight to audiences in an accessible weekly format.