Ashes & Diamonds Winery is a tasting room and production facility surrounded by organic vineyards in Napa, California. Alexandra Harker was the lead planting designer on the project.

The project required design of landscape that accommodates the entirety of the winery’s wastewater on site. Significantly, over one million gallons of wastewater from the tasting room and from the production facility are collected yearly in a treatment cistern and then used to irrigate the landscape. Because 52% of the annual wastewater is produced during the harvest period, some areas require plants that can tolerate both drought and periodic inundation. Additional plant selections are in place to attract pollinators that support the organic farming on site. Finally, the color palette for all of the planting is closely coordinated with that of the architecture and interiors.