Based on a real-world example this is the on-line "living" guide to realize a Zen garden. You also find a structured method and check-list to realize any garden.
The Tsubo-en Zen garden, www.zen-garden.org or
www.karesansui.nl is an on-line guide for creating a karesansui or Japanese dry landscape rock garden garden.
The site authors are based in the Netherlands, where they have created a Zen
karesansui garden named
Tsubo-en.
The website discusses how to create and maintain such a garden, from vision to maintenance and tuning, based on this real-world example.