Unlike the 3rd edition, the 4th edition includes evaluations of many cultivars and hybrids. Essentially, the great majority of taxa available from wholesale nurseries in California are included. Over 1,500 entries have been added to the 3rd edition list, for a total of 3,546 entries. ) represents a substantial expansion in the number of plant evaluations. WUCOLS IV: Water Use Classification of Landscape Species. California Center for Urban Horticulture, University of California, Davis. WUCOLS IV provides an assessment of irrigation water needs for over 3,500 taxa. It is based on the observations and extensive field experience of thirty-six landscape horticulturists (see the section "Regional Committees") and provides guidance in the selection and care of landscape plants relative to their water needs. WUCOLS IV provides evaluations of the irrigation water needs for over 3,500 taxa (taxonomic plant groups) used in California landscapes.
The WUCOLS searchable database allows you to create your “favorite” plant list by water needs (very low, low, moderate and high) for your climatic region. Doing so, however, requires some knowledge of plant water needs. By supplying only the amount of water needed to maintain landscape health and appearance, unnecessary applications that exceed plant needs can be avoided. One key strategy when landscaping is to group plants with similar water requirements. Effective strategies that increase water use efficiency must be identified and implemented. Water conservation is an essential consideration in the design and management of California landscapes. For any database technical issues, please contact Dave Fujino ( ucdavis. Please let us know your opinion about the recent changes to the WUCOLS database in this Feedback Survey. QR codes can be generated and printed for your “favorite” plants.Create WUCOLS information (bench) cards of your “Favorite” plants downloadable in two size formats.Interactive database allowing for the creation of your “Favorite” plant list and ability to download, export and save to Excel.Hi-resolution photos are downloadable for your use. Hi-resolution photos and cultural information for approximately 1,200 low- and very low-water use taxa.Interactive map feature to find city of interest.Interactive Google map to find city of interest.Improved search process that is faster and updates any search parameter changes instantaneously.Here are some highlights of the changes to the WUCOLS database: We are pleased to announce that the WUCOLS update process has now been completed! Funding for these upgrades was provided by the California Department of Water Resources.
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