The art and math of tree fractals

My writing about art and math in nature are always among my most popular posts, and I’ve meant to write about fractals for a while because they fascinate me. This time of year the bare branches of deciduous trees display their full beauty and fascinating growth patterns. Did you know that most trees have no… Read More

A plant-hunter’s extraordinary journey

John Jeffrey, the main character in my latest book Green Gold, walked, paddled and rode at least 10,000 miles across North America while hunting for plants from 1850-4. During the two years I spent researching and writing the book I plotted his travels in detail and can now publish the route in full for the first time. Read More