The house's open interior uses the natural surfaces of wood, combined with ample natural lighting and strategically - placed gravel gardens to evoke a sense of changing seasons. (treehugger.com)
Eryngium bourgatii (sea holly)(pictured) is spiky and thistle - like, so not a classic umbellifer, but it is ideal for gravel gardens in full sun. (idealhome.co.uk)
Reflecting his lifelong interest in Japan, Ackling created a Zen gravel garden next to his studio — surrounded by walls, a small wooden platform was positioned in the most Southerly position, allowing him to work in the sun for most of the day. (inglebygallery.com)