Founded in Seattle during the fall of 2005 by Mark Storey, a consulting editor for Nude & Natural magazine, and Jacob Gabriel, a permaculturalist, World Naked Gardening Day celebrates both nudism and digging in the Earth. As the holiday’s official website cheerfully proclaims, “Gardening naked is not only a simple joy, it reminds us — even if only for those few sunkissed minutes — that we can be honest with who we are as humans and as part of this planet.”

While you can technically garden naked whenever (but not wherever) you want, the official holiday is every first Saturday in May. Given that it was 37 degrees this morning in Kentucky, that may be a little brisk for some. But the significance of holding the annual holiday in May, one of the busiest months for horticulture, makes sense since it’s important to start gardening at the very beginning of spring. Unless, of course, you’re in the Southern hemisphere. If that’s the case, the New Zealand Naturist Federation has elected to celebrate World Naked Gardening Day during the last weekend in October.

When it comes to participating in World Naked Gardening Day, anyone can do it. Meaning, you don’t need to have a sprawling backyard or front lawn to get down and dirty sans clothes. People who live in apartments can stuff window boxes with colorful flowers in the nude. Depending on how brave you are, you can also go naked hiking — preferably in a low-traffic place — and help remove overgrown weeds and grasses from trails.