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What if the best mulch isn't something you buy or wheel around the garden—but something that's already growing?
In this conversation with Kath Irvine, author of The Edible Backyard, we explore the science and practical application of living mulch. Instead of constantly importing straw, compost, or woodchips, Kath explains how diverse, living plants can protect the soil, feed soil biology, reduce weeds, build resilience, and ultimately create a healthier garden with less work.
We discuss why diversity matters, how plant roots feed soil microbes, why chopping plants can be better than pulling them out, and how to introduce living mulch into both vegetable gardens and orchards. We also tackle some of the difficult realities of gardening—including invasive weeds, compost overuse, and when there may not be a perfect solution.
If you're aiming for a low-input, high-output garden that works more like nature, this episode will challenge many of the gardening "rules" we've been taught.
🌱 What You'll Discover
- What living mulch is and how it differs from traditional mulch
- Why plant diversity creates healthier, more resilient soil
- How living roots feed soil biology through photosynthesis
- Practical ways to introduce living mulch into vegetable gardens
- Creating productive orchards with perennial companion plants
- Why "chop and drop" often beats pulling weeds
- The surprising downside of using too much compost
- Choosing and saving seeds for diverse living mulch mixes
- Managing difficult weeds without becoming overwhelmed
- Why observation may be the most important gardening skill of all
📚 References & Resources Mentioned
- The Edible Backyard — Kath Irvine
- Homegrown Fruit — Kath Irvine
Kath Irvine's website
Referenced
🎧 Previous White Strawberries Episodes You Might Enjoy
Mulch and Ground Covers | Mastering the Garden
Companion Planting: Figs, Grapes, Olives & Companions | Mastering the Garden
Run until the 18th of August 2026
Supercharge Your Garden
🪴30 cuttings / mix of 15 varieties of plants- Sent out September only
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