Greywacke was created in 2009 by Kevin Judd, chief winemaker at Cloudy Bay from its inception for 25 years and instrumental in the international recognition which Marlborough Sauvignon Blanc enjoys now.
The name 'Greywacke' was adopted by Kevin for his first Marlborough vineyard located in Rapaura in recognition of the high prevalence of rounded greywacke river stones in the soils of the vineyard, a sedimentary rock which is widely found in Marlborough. 
The grapes for Greywacke Marlborough Chardonnay are primarily sourced from the low-yielding Mendoza clone, known for its concentration of flavour and crisp acidity; the balance were from Clone 95. The majority of the fruit was sourced from the lower reaches of the Brancott Valley and Fairhall, grown in gravelly, clay-loam soils, the remainder coming from Rapaura, grown in young alluvial soils containing high proportions of New Zealand�s ubiquitous greywacke river stones. All vineyards were trained on a two-cane VSP trellis.
A deliciously rich amalgam of pink grapefruit, figs and baked apples intertwine with more savoury characters redolent of meadow hay, toasted hazelnuts and buttered brioche. This grapefruit and nutty savouriness pervades the crisp, dry palate, while the power and concentration of the Mendoza clone creates an extraordinarily long finish that lingers and lingers.