Barker's Marque Wines produces white wines from Marlborough, New Zealand's South Island. The winery focuses on Sauvignon Blanc and Riesling, two varieties that thrive in the region's cool climate and mineral-rich soils. Three Brooms Single Vineyard Sauvignon Blanc and Arona Sauvignon Blanc represent the winery's work with this aromatic, high-acid grape, while Three Brooms Riesling showcases the region's capacity for complex, off-dry expressions. Both Wine Enthusiast and Wine Advocate have rated the winery's releases. Marlborough's long growing season and diurnal temperature swings produce wines with bright acidity and concentrated fruit character—hallmarks of the region's white wine identity.