FOR: The Marin chapter of the California Native Plant Society offers an extensive array of native bulbs, annuals, perennials, shrubs and even sometimes trees at their April and October plant sales, held on the grounds of Falkirk Cultural Center in San Rafael. Home Ground supplies about a third of the plants each sale through their propagation activities. Check for dates. Flowering plants for pollinators are the emphasis in spring; shrubs are the emphasis at the fall sale. Also available: Home Ground’s line of locally packaged native wildflower seeds.