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


CANCELLED: Protecting your backyard citrus: HLB greening update

Saturday, May 8, 2021  |  10 a.m.  |  Workshop Cancelled, to be reschedule in fall 2021

Join us for an update on the impacts of Citrus Greening—HLB disease—from Monique Rivera, Ph.D., UC Riverside extension specialist and research entomologist. Dr. Rivera's lab focuses on mitigating and preventing the spread of the disease and its vector, the Asian citrus phyllid. 

Speaker: Monique Rivera, Ph.D., University of CA, Riverside, Entomology Department

Dr. Monique Rivera's primary research interests are: plant-insect interactions, herbivore induced plant defenses, the biology and ecology of nematodes, and integrated pest management. Currently, she is an extension specialist and research entomologist at the University of California at Riverside. Dr. Rivera's lab focuses on questions in subtropical cropping systems in southern California. A major focus of research in Dr. Rivera's laboratory is mitigating and preventing the spread of HLB disease in California by its vector, the Asian citrus psyllid.

Growing avocados 

Saturday, June 12, 2021  |  10 a.m.  |  Save the date

Linda Mullins, UCCE Master Gardener, will teach you how to select and grow the best varieties in the Inland Empire for back yard avocado growing.

Speaker: Linda Mullins, UCCE Master Gardener

Linda Mullins is a certified organic farmer in the Temecula Valley growing a variety of avocados and giant winter squash for restaurants and local grocers. She and her husband have been farming here since 2012 and have been certified organic since 2019. Linda has been a UCCE Master Gardener since 2015 and has taught the avocado session of the Master Gardener training classes in 2019 and 2020. The Mullins grow a wide range of fruits and vegetables on their farm for home and commercial markets.

Do you require special accommodation?

Any person with a disability who requires a reasonable modification or accommodation in order to participate in meetings should direct requests to at least 48 hours before the meeting.

Learn about our plant of the month:

Eriogonum arborescens
Santa Cruz Island Buckwheat

SanSanta Cruz Island Buckwheat ta Cruz Island Buckwheat is native to the Channel Islands, but will thrive in coastal and inland areas on the mainland. This small shrub is striking year-round, with a long bloom cycle from spring through fall. It is very drought tolerant and needs no water after it is well established. It is sun-loving, easy to grow and cold hardy. Santa Cruz Island Buckwheat has a neat mounding shape with foliage that is bluish green at first, maturing to a gray green. The broad flower clusters rise on stems above the foliage and are rosy pink, fading to cream and becoming a rusty red as the seeds set. This plant is a magnet for butterflies and the birds will flock to harvest the seeds in fall. At home you can use the flower heads in a dried flower arrangement. For more information on the Santa Cruz Island Buckwheat, visit Eriogonum arborescens-Santa Cruz Island Buckwheat (

*Credit Moosa Creek Nursery.