Master Gardener Workshops

Western Municipal Water District partners with the University of California, Division of Agriculture and Natural Resources, University of California Cooperative Extension (UCCE) Master Gardener Program of Riverside County to host FREE monthly workshops that focus on gardening and efficient outdoor water use.

Workshops are hosted on the second Saturday of each month. 

Due to the COVID-19 pandemic, workshops are being held virtually.

  1. Upcoming Workshops
  2. Past Workshops


Greywater 101: Your garden can flourish with greywater as a resource

Greywater can help you grow an abundant landscape, even in the face of drought. Brook Sarson will introduce you to greywater including policies and benefits. We will discuss what is greywater and what isn’t greywater, how to access your greywater, what is legal and what requires a permit, how to estimate your greywater volume, how to use greywater in your garden, and what loves greywater and what might not like greywater. You will leave with a better understanding of what is possible at your home, and how to engage a professional to help you install your greywater system or where to find the tools and resources to install your own greywater system.

February 11, 2023 | 10 a.m.

Speaker: Brook Sarson, Catching H2O

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Learn about our plant of the month:

Romneya Coulteri - Coulter's Matilija Poppy 

Romneya coulteri (Coulter's Matilija poppy)Romneya coulteri (Coulter's Matilija poppy) is a species of flowering plant in the poppy family. This poppy is native to southern California and Baja California, where it grows in dry canyons in chaparral and coastal sage scrub plant communities, sometimes in areas recently burned.It is a popular ornamental plant, kept for its large, showy flowers. This is a shrub which may exceed two meters in height, its woody stem growing from a network of rhizomes. The gray-green, waxy-textured leaves are each divided into a few lance-shaped lobes, the blades growing up to 20 centimeters long. The inflorescence is a large, solitary flower with six crinkly white petals each up to 10 centimeters long. At the center of the flower is a cluster of many yellow stamens. The fruit is a bristly capsule 3 or 4 centimeters long containing many tiny seeds. This plant bears the largest flowers of any species native to California, rivaled only by Hibiscus lasiocarpos. It was nominated for the honor of California state flower in 1890, but the California poppy won the title in a landslide. A closely related species, Romneya trichocalyx, has more spiny sepals on the flower buds and overall smaller plant and flowers.