Ninety-three percent of Northern California’s vineyard acreage consists of eight grape varietals. The other 7 percent propagates hundreds of lesser-known grapes, and it’s that percentage that gets celebrated this weekend during the Seven % Solution event. Knowing that diversity breeds unique tastes and healthier soil, over 20 local wineries come together to support each other in growing these obscure grapes and to shift the focus in California winemaking from the standard to the new and exciting. The new solutions come to fruition on Saturday, May 14, at Bergamot Alley, 328-A Healdsburg Ave., Healdsburg. 2pm. $65. 707.433.8720.