At a glance

Producer

Cullen Wines

Region

Margaret River, Australia

Grape variety

Cabernet Sauvignon Shiraz Merlot Cabernet Franc Petit Verdot (Bordeaux-style blend)

Wine type

Red

Body

Full-bodied and Bold

Sweetness

Dry

Typical price

$60-$90

Tasting profile

Dark berry, cassis, fine herbs, cedar, and graphite aromas; palate shows dense black fruits, integrated oak, firm tannins

Evolution: Will develop tertiary notes of tobacco, leather, earth, and subtle spice over the next decade

At peak: Complex layered aromas and silky, polished mouthfeel with sustained finish

Structure

Acidity

Medium plus acidity, balancing the richness

Tannins

Firm and well-integrated, medium to high

Alcohol

14-14.5% ABV

Aging potential

20+ years due to high quality fruit, careful vinification, and excellent vintage conditions

Drinking window

Peak drinking

2028 to 2050

Optimal window

2024 to 2053

Current status

Approaching early maturity, suitable for drinking with further cellaring potential

Current condition

Youthful tannins with good structure and intensity; still evolving

Cullen's Diana Madeline is among Australia's top Bordeaux-style blends with great concentration and structure, allowing it to age gracefully for 20+ years. The 2018 vintage is particularly well regarded for balance and depth, justifying the long drinking window and peak starting mid-2020s after initial tannin integration.

Food pairing

Grilled red meats, lamb rump, game dishes, aged hard cheeses, and dishes with herbaceous or peppery sauces

Serving

Serving temperature

16-18°C / 61-64°F

Decant

Yes (1-2 hours) — To soften tannins and open the complex bouquet

Sustainability

Sustainability score: 9/10

Uses solar energy, rainwater harvesting, minimal chemical intervention, cover crops for soil health, promotes biodiversity

Cullen Wines is a recognized pioneer in sustainability in Australia with fully certified organic and biodynamic viticulture since 2000. Their environmental stewardship includes renewable energy use, water conservation via rainwater capture, and eco-friendly packaging. Although international shipping adds to carbon footprint, their overall sustainable practices position them among global leaders in eco-conscious premium wine production.