Featuring plants associated with watercourses throughout California, the Arroyo is situated in an oak-shaded drainage along a seasonal stream. Large drifts of California wild rose (Rosa californica) and Douglas iris (Iris douglasiana) fill the open banks while masses of gooseberries, currants (Ribes species) and Pacific ninebark (Physocarpus capitatus) are found in shadier spots.

Special features of the Arroyo include the "dripping rock" display, which contains herbaceous plants that require constant moisture, and the Heuchera display, a collection of over 30 species and cultivars.

The Arroyo also is home to many mature conifers, such as Port Orford-cedar (Chamaecyparis lawsoniana), Monterey cypress (Cupressus macrocarpa), and western red-cedar (Thuja plicata).

For information about the location of a display within the Garden please see the map below.

image of arroyo section visitor map