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WUCOLS Landscape Water-Use Planning Tool

California plant database search tool

What is WUCOLS?

Water Use Classifications of Landscape Species As of January, 2025 this list is not up to date. Go to official WUCOLS search site

Water Use Classifications of Landscape Species (WUCOLS) provides a guide to estimating irrigation water needs of landscape plantings in
each of 6 distinct California climate regions. WUCOLS was developed by the University of California Cooperative Extension in cooperation
with landscape professionals and funded by the California Department of Water Resources.

Click pdf icon to view or download WUCOLS IV plant list. Learn more about WUCOLS here

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