In this episode of Roots and All, I chat with ecology consultant Johnnie Johnson about his journey into the natural world, his detailed multi-visit garden surveys, and the incredible discoveries he makes in unexpected places. From tracking scarce insects to working with prominent public spaces like the Horniman Museum and John Little's garden, Johnnie Johnson shares how anyone can boost wildlife by embracing structural complexity and natural variation.

Benny's Insect of the Week: The Southern Green Shieldbug

What You'll Learn:

• How garden biodiversity audits work, spanning multiple visits across the spring and summer seasons.
• Why urban gardens serve as crucial ecological stepping stones for wildlife in an increasingly paved-over landscape.
• The importance of starting at the bottom of the food chain by focusing on native plants and structural micro-habitats.
• Practical, low-cost ways to invite wildlife in—from small water sources and log piles to areas of bare ground and varied vegetation heights.

The Reality of Ecology Consulting and Garden Surveys

Johnnie Johnson shares how he transitioned into ecology later in life, moving from the planning side of the profession—which deals heavily with development and mitigation—into hands-on garden surveys that actually focus on finding and celebrating life. He discusses his detailed reports, which often span 80 to 100 pages and combine scientific data with custom artwork and portraits of notable insects found on site.

Why Gardens Matter More Than You Think

Reflecting on his survey work across Essex, Suffolk, and London, Johnnie Johnson highlights that private and public gardens often possess a remarkable variety of micro-habitats. Because traditional rural landscapes can sometimes be impoverished, these green spaces act as vital urban refuges. He also touches on his baseline surveys at the Horniman Museum, tracking how strategic changes to cutting regimes over several years can drastically improve species richness.

Practical Principles for Gardeners and Designers

When translating ecological data into day-to-day garden care, Johnnie Johnson emphasizes simplicity over rigid science:

• Embrace structural diversity: Incorporate varied plant heights, log piles, soil patches, and a water source to instantly boost habitat value.
• Champion native species: Move toward utilizing native plants to support a fully functioning local food web.
• Collaborate with designers: Bridge the gap between rigorous ecology and aesthetic design so that native-heavy planting schemes look and feel fantastic in a domestic setting.

Links & Resources

• Johnnie Johnson on Instagram
• The Horniman Museum & Gardens: Explore their public spaces and long-term ecological projects.

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Recommended Archive Episodes:

Episode 287: Designing for Biodiversity with Professor Dave Goulson This deep-dive archive episode looks closely at how insect populations interact with garden planting choices, matching Johnnie's focus on starting from the bottom of the food chain and supporting local pollinators.

Episode 245: The Living Soil and Micro-Habitats An extensive look into building foundational garden elements like bare ground, log piles, and soil health, directly echoing Johnnie's practical advice on structural complexity and micro-habitats.

In this episode, gardening expert and The English Garden editor Clare Foggett joins us to explore what truly defines a cottage garden. We discuss why these spaces are defined by generous planting rather than rigid design, the magic of self-seeding plants, and how this traditional style fits into modern, sustainable, and biodiverse gardening.

Includes:

• Planted, Not Designed: Discover how cottage gardens evolve naturally through a passion for plants rather than a master plan.

• The Power of Self-Seeders: Learn why plants like foxgloves and valerian are essential for a relaxed, charming aesthetic.

• Modern Sustainability: Find out why this high-flower, low-lawn approach is the ultimate eco-friendly choice for contemporary gardeners.

Benny's Insect of the Week: Ivy Bee

Links

Beauty & Abundance: British Cottage Gardens by Clare Foggett

Nestboxes Talk - with Ian Rumley-Dawson

Please support the podcast on Patreon

And follow Roots and All:

On Instagram @rootsandallpod

On Facebook @rootsandalluk

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If you enjoyed this week's episode with Clare, you might also enjoy these episodes from the archives:

Episode 168: Cottage Gardens with Andrew Sankey

Andrew Sankey has spent decades researching English cottage gardens, and this episode explores what defines the style, both historically and today, including the plants, planting techniques, edibles and wildlife-friendly qualities that make cottage gardens so distinctive. It's a particularly useful companion to Claire's exploration of how the cottage garden has evolved and why it remains so relevant to the way we garden today.

Episode 244: The Biodiversity Gardener with Paul Sterry

Paul Sterry explores how gardens can contribute to biodiversity, from the plants we grow and the way we manage them to the habitats we create for insects and other wildlife. Like Claire's conversation, it considers how a more relaxed, abundant approach to gardening can benefit nature as well as creating a beautiful garden.