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UC Master Gardeners of Monterey, San Benito & Santa Cruz Counties

Compost & Soil Preparation

Good gardeners grow good soil. It's the soil that grows the garden. 

 

Ornamental plant and strawberry plants with a trowel.
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UC Master Gardeners of Central Sierra

Master Gardeners are community members who have been trained under the direction of the University of California Cooperative Extension. Master Gardeners help the UC Cooperative Extension office provide practical scientific gardening information to the home gardeners of our counties.
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Composting bins
UC Master Gardeners of Orange County: Event

Composting 101 - Fullerton

Event Date
Sep 23, 2026

Just how does compost happen? Nature, as it recycles by decomposition, provides us with garden gold. UC Master Gardeners of Orange County will teach you why it is important to recycle organic waste, about the right balance of greens, browns, air and water, and how soon you can expect your first batch! …
UC Master Gardeners of Orange County
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Compost workshop Series flier with dates and topics covered
Livestock & Range: Article

Compost Worshop Series - San Benito County

July 24, 2026
By Fadzayi E Mashiri
Through live demonstrations, you'll learn practical techniques that are easy to incorporate into your own home garden (or production system) while getting the most out of your compost.  📍 Location:San Benito County Historical Park8300 Airline Hwy, Tres Pinos🕙 Time: 10:00 AM – 12:00 PM🎁 Bonus:…
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UC Master Gardeners of Amador County: Event

Central Sierra: Soils (Jackson)

Event Date
Aug 29, 2026

Soil is the foundation of a successful, productive garden and flourishing landscape plants.  Healthy plants need healthy soil!Soil types vary greatly in the Amador County foothills, even within the same neighborhood.  It’s important to get to know your soil.  Join us for discussion, activities…
UC Master Gardeners of Amador County
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Vermiculture
UC Master Gardeners of Orange County: Event

Composting & vermiculture - Anaheim

Event Date
Jul 24, 2026

Yes, worms CAN eat your green kitchen waste and UC Master Gardeners of Orange County will tell you how to make that happen! Find out what equipment and supplies you’ll need to assemble a worm bin including bedding, water, worms and food scraps. You will also learn how to set up the vermiculture system,…
UC Master Gardeners of Orange County
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Image of stacked lime stones.
UC Master Gardeners of Tuolumne County: Article

Lime in Tuolumne County Gardens and History

June 27, 2026
Lime in Tuolumne County Gardens and Historywritten by UCCE Master Gardener Nancy Piekarczyk Tuolumne County—in the past and present—is a significant producer of lime and dolomitic lime. The stone is used for construction, agriculture and making slaked lime for mortar and plaster…
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Compost: A Magical Transformation - Laguna Niguel
UC Master Gardeners of Orange County: Event

Compost 101 - Irvine

Event Date
Jul 11, 2026

Just how does compost happen? Nature, as it recycles by decomposition, provides us with garden gold. UC Master Gardeners of Orange County will teach you why it is important to recycle organic waste, about the right balance of greens, browns, air and water, and how soon you can expect your first batch!…
UC Master Gardeners of Orange County
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UC Master Gardeners of Placer County: Article

All About Composting

June 9, 2026
Why Should I Compost?It keeps organics from going to our landfills, thereby reducing the amount of methane gas created.It saves money by replacing purchased soil amendments.It improves soil structure (such as reducing soil compaction) by loosening clay soil and feeding the soil microbes.It increases soil…
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Imagine of a dairy cow on pasture with text that says Join Us! Bringing your own soil analyses is highly encouraged!!! July 8th, 2026 9:30am - 12pm. Lavio Ranch 4990 D St. Ext Petaluma, CA
UC Organic Agriculture Institute: Event

Organic Dairies Soil Analysis Workshop

Event Date
Jul 8, 2026

Join UC Cooperative Extension & UC Organic Agriculture Institute for an Organic Dairies Soil Analysis WorkshopAttendees are encouraged to bring their most recent soil test report, CNMPs, and/or farm soil map to this workshop, which will take a deep dive into using results to make management decisions…
UC Organic Agriculture Institute
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Tending Your Soil
UC Master Gardeners of Orange County: Event

Tending the Soil - Fullerton

Event Date
Jun 24, 2026

Improve your soil, improve your garden! Good soil is the starting place for a smart garden.  Learn the components of soil, how to evaluate your landscape soil, and the steps you can take to enrich your soil to produce a bountiful, sustainable landscape and garden. UC Master Gardeners of Orange…
UC Master Gardeners of Orange County
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a pH meter with a white background.
UC Master Gardeners of Tuolumne County: Article

Why Check Soil pH First

May 30, 2026
Will your garden soil produce well? One of the best items to check is your soil pH or acidity. pH stands for the “potential of hydrogen” and is a scale that indicates whether your soil is acid or alkaline (basic). The pH scale runs from 0 to 14 with 7.0 being neutral. If your pH is below…
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