On-Center vs. Spread
Each year when I teach my students about drawing plant symbols there is always confusion about what I mean by on-center vs. spread, so in anticipation of that lesson, I've pulled together this graphic. I thought you might enjoy it too (in case there was any confusion in your life or a dear friend's).
Garden Graphics Tool Kit
An awesome online course that teaches simple and fun drawing techniques to help communicate your garden vision. Enrollment open in January each year.