Today we ventured to the SAM Sculpture Park in downtown Seattle. As part of the perminent exhibits, there is a greenhouse built over a nurse log specifically selected to demonstrate growth of plant life on the decaying tree trunk.
I was struck by the reason the volunteer host returns each year to this exhibit, watching life grow quickly. The nurse log reminds me being a new parent.
Rain water collects from the roof and is stored in large cisterns indoors. It provides some 80%+ of all water needed. The green tinge in the photo is from the overhead tinted windows, designed to provide dappled lighting like a forest.
If you are ever out on a hot or rainy day in Seattle, I recommend a stop in to cool off or stay dry. Count the number of different kinds of plants growing on the nurse log.