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Past Events (1870)

Date range
February 27, 2026
Friday
  • Green Movie Night - "Alaska Gold"

  • Feb 27, 2026 from 7:00pm to 9:00pm
  • Location: Church of the Resurrection, 399 Gregory Lane, Pleasant Hill
  • Description:

    The Green Movie Night series presents a screening of the powerful documentary, "Alaska Gold."

    The Bristol Bay region of southwest Alaska is home to the last great wild sockeye salmon fishery in the world. It’s also home to enormous mineral deposits e

  • Created by: Sustainable Contra Costa
February 17, 2026
Tuesday
  • Good Bug, Bad Bug: A Master Gardener Webinar

  • Feb 17, 2026 from 6:00pm to 7:30pm
  • Location: Online webinar
  • Description:

    Join Master Gardener John Fike as he provides a snapshot image of the fascinating insect populations that exist under the leaves, in the soil and in the air around us. Insect pests (bad bugs) that commonly occur in our area are shown along with the b

  • Created by: Sustainable Contra Costa
February 7, 2026
Saturday
  • Rodgers Ranch Urban Farm FREE Pruning Class

  • Feb 7, 2026 from 12:00pm to 1:30pm
  • Location: Rodgers Ranch Urban Farm, Pleasant Hill
  • Description:

    Learn to Prune Like a Pro

    Join us for an outdoor lab workshop focused on practical, real-world pruning.  Taught by professional arborists from SavATree.  Learn what to prune – and what not to.  We’ll discuss both fruit and non-fruit trees.

     FREE EVEN

  • Created by: Sustainable Contra Costa
 
  • In Depth on County Sustainability

  • Jan 13, 2026 from 6:00pm to 7:00pm
  • Location: Kensington Library, 61 Arlington Avenue
  • Description:

    Come learn about Contra Costa County's Climate Action and Adaptation Plan (CAAP): a strategic approach to reduce greenhouse gas (GHG) emissions, improve energy efficiency, reduce waste, develop renewable energy and expand green infrastructure. Guest

  • Created by: Sustainable Contra Costa
December 13, 2025
Saturday
  • Community Tree Planting Workshop

  • Dec 13, 2025 from 9:30am to 1:00pm
  • Location: Lynbrook Park, Bay Point
  • Description:

    Come out and plant trees in your community during our first workshop with The Watershed Project and Contra Costa County! As part of the County’s effort to grow new trees and develop a countywide Urban Forest Management Plan, you’ll help us plant and

  • Created by: Sustainable Contra Costa
December 6, 2025
Saturday
  • Rodgers Ranch Holiday Boutique

  • Dec 6, 2025 from 10:00am to 4:00pm
  • Location: Rodgers Ranch Heritage Center, Pleasant Hill
  • Description:
    Experience the wartmth and charm of the newly redecorated 19th century farmhouse in this special time to come together with our community❤
    Featuring a delightful selection of handcrafted items made by talented local vendors, with many favorites return
  • Created by: Sustainable Contra Costa
 
  • Giving Natives a Chance Planting Event

  • Dec 6, 2025 from 9:00am to 11:30am
  • Location: Hillcrest Community Park, Concord
  • Description:

    Join us for a fun morning outdoors, planting native grasses with other community members!

    Giving Natives a Chance is an event where we plant native plant species along the creek banks of the Clayton Valley Drain and remove invasive species to help ba

  • Created by: Sustainable Contra Costa
November 18, 2025
Tuesday
  • Growing Potatoes at Home

  • Nov 18, 2025 from 6:00pm to 7:30pm
  • Location: Online webinar
  • Description:

    Feeling tired from summer gardening and debating if winter gardening is for you? The speaker can’t wait to share why growing potatoes at home is the perfect winter crop for those eager to add a new winter crop to their rotation or those debating whet

  • Created by: Sustainable Contra Costa
 
  • Martinez Composting Workshop

  • Nov 18, 2025 from 12:00pm to 1:00pm
  • Location: City Hall Council Chamber, 525 Henrietta Street, Martinez, CA 94553
  • Description:

    Interested in learning about home composting?  The City of Martinez is hosting a free Home Composting Workshop, led by sustainability expert Todd Sutton, on Tuesday, November 18th from 12:00 – 1:00 PM in the City Hall Council Chamber.  

    Enjoy light re

  • Created by: Kerry Rivers
November 13, 2025
Thursday
  • How is Your Garden Going?

  • Nov 13, 2025 from 1:00pm to 2:00pm
  • Location: Online webinar
  • Description:

    Now that your lawn is gone, how is it going with your water-wise landscape?

    Join Nicolle Patterson and Kristin Bowman from EBMUD Water Conservation Division and Dawn Kooyumjian with UC Master Gardeners of Contra Costa County, for an interactive onlin

  • Created by: Sustainable Contra Costa
November 6, 2025
Thursday
  • Pruning and Garden Maintenance Basics

  • Nov 6, 2025 from 6:00pm to 7:00pm
  • Location: Online webinar
  • Description:

    Join Dave Phelps—Landscape Architect, garden coach, and founder of Garden Enlightenment—for an informative online presentation on fall garden care. Dave will walk us through the essentials of seasonal maintenance, including: pruning basics for shrubs

  • Created by: Sustainable Contra Costa
October 26, 2025
Sunday
  • Halloween Hike on Devil Mountain

  • Oct 26, 2025 from 3:00pm to 6:00pm
  • Location: Mount Diablo State Park - Mitchell Canyon Visitor Center
  • Description:

    In this family-friendly walk presented by Greenbelt Alliance, we'll stroll up Mitchell Canyon in search of witches' broom, devil's horns, ghost pines, and other scary and not-so-scary signs of the season. But first, we'll meet the famous 8-legged div

  • Created by: Tyler Snortum-Phelps
October 21, 2025
Tuesday
  • What to do about Weeds

  • Oct 21, 2025 from 6:00pm to 7:30pm
  • Location: Online webinar
  • Description:

    Weeds may be small, but their impact is anything but. Understanding how weeds grow is essential to understanding how to control them. Join UC Master Gardener Dawn Kooyumjian for a FREE insightful webinar that dives deep into the world of weeds: why t

  • Created by: Tyler Snortum-Phelps
October 14, 2025
Tuesday
  • Climate & Sustainability Panel

  • Oct 14, 2025 from 7:00pm to 8:30pm
  • Location: Walnut Creek Library, Oak View Room 2nd Floor
  • Description:

    The Walnut Creek Library Foundation is honored to welcome Wei-Tai Kwok and Tyler Snortum-Phelps from  Sustainable Contra Costa to Live! From the Library for a FREE conversation about climate change and steps we can all take to mitigate its effects. 

  • Created by: Sustainable Contra Costa
October 11, 2025
Saturday
  • Grow, Cook, and Create Community Day

  • Oct 11, 2025 from 9:00am to 2:30pm
  • Location: Rodgers Ranch Heritage Center, Pleasant Hill
  • Description:

    Join us for a day of learning and help raise funds for Rodgers Ranch!
    Our three onsite partner organizations will be conducting hands-on workshops that showcase how our gardens can be used to create food and beauty. 

    You can sign up for one or more of

  • Created by: Sustainable Contra Costa