Matahiwi embrace practices which encourage a healthy vineyard. Inter-row plantings promote healthy soils and bio-diversity in the vineyard. The flowering buckwheat and phacelia attract natural predators for some vineyard pests, while clovers, oats, chicory and vetch provide nitrogen and other nutrients to vines when they are mown or cultivated into the ground.
The winery continually tests different viticulture and winemaking methods, including organic regimes on certain Sauvignon Blanc and Pinot Noir blocks. To a large extent homegrown mulches and products made from seaweeds and humic acids replace hard fertilisers. Sheep wander among the vines in winter.