Coarse wool has found customers who pay for performance

A gardening column that points at a real market

A 25 July 2026 NZ Herald feature by Kem Ormond makes the case that wool is “a powerful slow-release fertiliser, a slow-decaying mulch, and a water sponge full of micro-organisms.” It reads like a home-garden tip, but it points at something more commercially interesting: a fibre New Zealand produces in abundance, and has struggled for decades to sell, is finding uses where customers pay for performance rather than sentiment.

The agronomic problem wool solves is genuine. Native and ornamental seedlings lose their first-year fight for moisture against pasture grasses. Wool mulch holds water and suppresses weeds. Wool propagation pots biodegrade below the soil line, letting roots grow straight through and cutting transplant shock. These aren’t hypotheticals. They’re already productised.

Products that exist and sell

Sustaina Grow makes 100% New Zealand wool propagation pots, plastic-free and designed for orchards, vineyards and restoration planting, that biodegrade in four to six weeks. They retail through Kings Seeds at NZ$15.95. Wool.Life has documented commercial landscaping projects where wool matting outperformed coir on longevity and structural integrity.

The volumes are small. But they are exactly the kind of paying-customer validation the wool sector has been short of. Someone chose wool over plastic and over coir, and paid for it because it worked.

The hole these products are trying to fill

To understand why this matters, look at the scale of the decline. Strong or coarse wool, 33-plus microns and roughly 90% of the national clip, has been in structural retreat for a generation. New Zealand sheep numbers peaked at around 70 million in 1982 and have fallen to roughly 23 million in recent years, per AgResearch. Prices sank so low that returns often failed to cover shearing costs, turning wool from an asset into a liability. Some farmers switched to self-shedding breeds simply to stop paying to remove it.

That is the baseline. Any market that puts a floor under coarse wool prices is worth watching, and the horticulture products are one thread in a wider effort.

The bigger plays behind the garden pots

The more ambitious bets are industrial. Woolchemy has set out to process up to 12,000 tonnes of 33-39 micron coarse wool in its first year, targeting the US$47 billion global non-woven textile sector with products including nappies, using a treatment that lifts wool’s absorbency to match petroleum-derived fibres while adding biodegradability and odour control.

Deconstructed wool is the other frontier. Back in July 2021, WRONZ launched Wool Source, a pilot facility making wool particles, pigments and powders for cosmetics and personal care, backed by a seven-year research programme worth roughly $21 million with MBIE committing $8.4 million. That work is still years from mass commercialisation, but it reflects a strategy of finding higher-value uses for the fibre rather than waiting for the carpet and apparel markets to recover.

The anchor customer is the Crown

The largest confirmed win is not horticulture. From 1 July 2025, Kainga Ora began using Bremworth wool carpet in close to 1,000 housing projects a year under a multimillion-dollar contract, reversing an earlier decision to exclude wool. That earlier call had been made on cost, with internal analysis showing nylon was cheaper than wool alternatives, and it drew sharp criticism from Federated Farmers, who argued the agency “weren’t interested in testing the price wool carpet providers might come up with for such a significant supply contract,” per an earlier NZ Herald report.

Government procurement rules now push around 130 agencies to specify woollen products in larger construction and refurbishment projects, per AgResearch. That is a demand backstop, though a subsidised one, which is a different thing from a market that stands on its own.

What actually moves the needle

The honest read for agribusiness is this. Horticulture, non-woven textiles and deconstructed ingredients each compete on real properties: moisture retention, absorbency, temperature regulation, biodegradability. None on its own rescues coarse wool. Collectively, they are rebuilding a commodity category that was heading toward zero, and doing it with customers rather than nostalgia.

The test is scale. Can Woolchemy hit commercial volume, can the garden and vineyard products grow beyond niche, and can that combined demand lift the price a farmer gets at the gate. Wool propagation pots won’t reverse forty years of decline. But they are evidence that the fibre still has jobs worth paying for, which is more than the sector could say a few years ago.

Sources

• Why wool could be the secret to healthier plants and vegetables – Kem Ormond (2026-07-25)
• A big win for wool! Kainga Ora-Bremworth wool carpet contract (2025-06-12)
• WRONZ launches Wool Source targeting new products and markets for New Zealand strong wool (2021-07)
• Nappies in plan to revive wool – Farmers Weekly
• Rising hopes for wool resurgence – AgResearch
• Wool: Kainga Ora’s synthetic carpet decision disappoints industry and farmers – NZ Herald
• GB Morris Landscaping – Wool Life case study
• Wool Propagation Pot – Sustaina Grow
• Buy Wool Propagation Pots by Kings Seeds NZ online