Easy Hike at Shell Ridge in Walnut Creek’s Open Space – Central Contra Costa

Best in March through April and July-August for later flowers

A large area quarried for gravel is now home to plants which colonized the area from the rocky spines of nearby ridges. The very shallow soil and sunny dry conditions in the quarry was suitable for plants such as poppies, California sage, buckwheat, deerweed, foothill penstemon California and nodding needlegrass (Stipa cernua).