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Cullen Wines
WilyabrupMargaret RiverWestern AustraliaWine

Cullen Wines

KULL-en
Gold Tier
Last verified · August 2026
Cullen Wines, Wilyabrup, Margaret River, Western Australia.

Kevin Cullen was a doctor before he planted vines. In his own surgery he saw the effects of agricultural chemicals on potato farmers first hand. He later died of motor neurone disease, which his daughter believes may have been linked to Agent Orange exposure while serving as a doctor in Vietnam.

The farming here has a personal origin, not a commercial one. His daughter Vanya Cullen has run the estate since the 1990s, following her parents' deaths, and two of the wines are named for them — the Kevin John Chardonnay for her father, the Diana Madeline Cabernet-Merlot for her mother, the couple who planted the vineyard and helped establish Margaret River as a wine region at all.

Cullen Wines
Estate vineyards farmed biodynamically since 2004 and carbon positive since 2019.

She then did something almost nobody attempts: a full biodynamic conversion under Demeter certification while simultaneously pursuing carbon neutrality, and reached both. Very few wineries anywhere hold that pair of credentials in parallel. The synthetic chemistry came out progressively from the 1990s and has stayed out, under certified organic and biodynamic standards, ever since.

None of this was done from the margins. Cullen is one of Margaret River's founding estates and one of Australia's most awarded producers, a house with everything to lose from an experiment that failed. The Diana Madeline is the wine that made the case for Margaret River as a serious Cabernet region, and it ages with a composure that only sustained farming produces.

If this estate stood in Burgundy or the Médoc it would have a waiting list and a reputation to match. In Margaret River it goes on being quietly, stubbornly excellent, which is a good argument for looking further down the map than habit suggests.

“We’ve also got 65,000 years of Wadandi sustainable land care.”
Vanya CullenChief winemaker, on the estate’s fifty-year legacy, 2026 · Vine Street Imports

Why it’s remarkable

Carbon positive
since 2019 — it stores more than it emits
Australia’s first carbon-neutral winery in 2007, and carbon positive since 2019: the estate sequesters more carbon than the entire business produces. Certified organic in 2003 and biodynamic in 2004.
6 seasons
not four, following Wadandi knowledge
The estate works to the six-season calendar of the Wadandi people rather than the four imported from Europe — which describes what actually happens in Margaret River rather than what happens in France.
Nothing added
no yeast, no acid, no malolactic culture
Fruit is picked by hand on fruit and flower days. If the farming has done its work, Vanya Cullen argues, there is nothing left to correct in the winery.

Free Bacchus Verification

Track A
Formal third-party certification, confirmed against the issuing body’s own register.
Re-verified annually against the issuing body’s register. How re-verification works
Flagship
Diana Madeline
Best award
Australia's Best Biodynamic · James Halliday Wine Companion

If you’re buying

Price
Around US$130 for the flagship bottling. Approximate, and it moves with vintage and market.
Drinking now
Diana Madeline and Kevin John reward five to fifteen years. The lighter bottlings are ready now.
Serving
Serve reds at 16–18°C, the Chardonnay at 12°C. Decant young Diana Madeline an hour.
Availability
Generally obtainable through specialist retailers.
Tastes like
Cabernet blends and Chardonnay of real poise — blackcurrant, cedar and a fine line of acidity. Elegant, not heavy.
Pairs with
Roast lamb, grilled fish, or a soft cow’s cheese.
Price bands are approximate and move with vintage, market and region. They are a guide, not a quotation.

Cheat sheet

Save it to your phone. Everything you need to recognise this producer, and three things worth saying about it, at a glance in a shop or across a table.

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