Northern California Garden: Wisteria-Covered Arbor and Purple Spring Show

Shelly and Bill Coglizer's Lafayette garden centers on a wisteria-covered iron arbor with precast concrete columns (Napa Valley Cast Stone). The spring purple burst is spectacular; summer foliage provides shade for dining. Beneath, diagonally set concrete pavers with baby's tears in the seams. Rear property: pond with raised beds of white azaleas, katsura tree, rhododendrons, tree fern, viburnum, and shade plants.

Design: Ron Lutsko, Lutsko Associates, San Francisco (415/920-2800); Freeland and Sabrina Tanner, Proscape Landscape Design, Yountville (707/226-2540).