By Duncan Heather, Director of the Oxford College of Garden Design

Planting design is one of those skills you can only take so far from a lecture. At some point you need to sit with a book, look properly at how someone else has solved the problem you're wrestling with, and let their thinking sharpen your own.

This list isn't definitive - no reading list ever is - but it's a genuine working reference, built from the books I keep coming back to and recommending to students. Some cover the process end to end; others are worth having for one idea done exceptionally well. A few are out of print but still very much worth tracking down secondhand. Between them, they cover both domestic and commercial planting, and if you're serious about planting design, I'd work through as many as you can.

Complete Planting Design Course

Hilary Thomas & Steven Wooster

Despite the name, this is a book rather than a course, and a genuinely useful one. Hilary Thomas, who established the planting design course at Capel Manor College, and photographer Steven Wooster take you through the full process - choosing and combining plants for year-round interest, for drama and movement, and for awkward sites - from first concept through to a finished scheme. A solid starting point if you want the whole sequence in one place.

The Garden Colour Book

Worth flagging before you buy: this is the US edition of a book published in the UK as The Garden Colour Palette (Conran Octopus). I mention it because I've caught myself ordering both before, thinking they were different titles. Either edition is a strong reference if you're planting a new garden or reworking existing borders around colour.

Dream Plants for the Natural Garden

Henk Gerritsen & Piet Oudolf

A reference guide to around 1,200 plants, organised by how they behave rather than simply how they look. Gerritsen and Oudolf's underlying argument is worth sitting with: a genuinely good plant is one that's both beautiful and robust, and performs reliably with very little intervention from the gardener. That's a useful filter to apply to your own planting choices, well beyond this particular book.

Piet Oudolf: Landscapes in Landscapes

Text by Noël Kingsbury

A survey of twenty-three of Oudolf's public and private gardens, with Noël Kingsbury's commentary setting each one in context. Oudolf's own planting plans are included, which makes this genuinely useful for understanding process, not just for admiring the results - relevant whether you're working at the scale of a private garden or a large public landscape.

Plant-Driven Design

Scott Ogden & Lauren Springer Ogden

The Ogdens' argument is straightforward: too much garden design treats plants as decoration for the architecture, rather than giving them the leading role. It's a useful corrective if you find yourself designing the hardscaping first and fitting the planting around it afterwards - this book makes the case for starting from the plants instead.

Planting in a Post-Wild World

Thomas Rainer & Claudia West

Rainer and West set out an alternative to conventional horticulture: planting designed to function like a naturally occurring plant community, rather than as a collection of individual specimens. It's become one of the standard references for anyone interested in resilient, ecologically-minded planting, and it's had a real influence on how the profession thinks about long-term planting performance.

Professional Planting Design

Scott C. Scarfone

Scarfone works through the basics and the more advanced end of planting design together - selecting plant characteristics, structuring and composing mixed beds, and designing for multi-season interest in both elevation and plan. Useful if you want a structured method you can apply project by project, rather than relying purely on instinct.

Colour by Design: Planting the Contemporary Garden

Nori Pope & Sandra Pope

Built around the Popes' own planting work at Hadspen Garden in Somerset, this works through colour one hue at a time, showing how each is used to create a particular mood or atmosphere. The photographic sequences tracking colour-themed borders across a full year are the standout feature - genuinely useful for understanding how a scheme performs over time, rather than just at its photographed peak.

The Planting Design Handbook

Nick Robinson

Nick Robinson's book has been a set text on landscape architecture courses since it was first published in 1992, and it's easy to see why. It brings the horticultural, ecological and aesthetic sides of planting together in one place - spatial composition, species selection, spacing, and the ongoing management a scheme needs once it's in the ground.

Planting Design: Gardens in Time and Space

Piet Oudolf & Noël Kingsbury

Oudolf and Kingsbury focus on how successful plant combinations work across both time and space - perennials read in the context of trees, shrubs, and the wider landscape around them. Their central idea, that a planting scheme should be read across, into, and through the landscape rather than as a flat picture, is one of the more useful mental models for thinking about long views and sightlines. There's practical grounding here too, on soil preparation, plant selection and maintenance, alongside the theory.

Elements of Planting Design

Richard L. Austin

A clear, step-by-step route through the planting composition process, from preplanning through to a final plan. What's useful here is how directly Austin addresses the tension every designer has to manage: balancing technical constraints - regional vegetation, soil, climate, noise, erosion control - against aesthetic decisions on colour, form and seasonal variation.

The RHS Encyclopedia of Planting Combinations

Tony Lord

An A-Z reference of more than 1,000 plants, each photographed alongside one to three companion plants, building over 4,000 combinations in total. It's less about theory and more about a working visual library - useful for building your own combinations as much as for lifting ideas directly, organised by bulbs, climbers, perennials, shrubs, trees, roses and annuals.

Plant by Numbers

A collection of full-colour planting themes with accompanying plans, each plant numbered and listed so you can take the list straight to the nursery or order online. Worth knowing before you buy: several of the plans cover a fairly large area, so it suits bigger schemes better than a small back garden - though there's still plenty here to borrow ideas from at any scale.

Key Takeaway

No single book will teach you planting design - what matters is reading enough of them, from different angles, that you start recognising the same underlying principles surfacing in different voices. That's when the theory starts turning into your own judgement.