This document provides information on plants that attract butterflies in West Los Angeles, California, including: 1. A list of the top nectar flowers for butterflies, ranging from native purple ceanothus to non-native plants like butterfly weed and Brazilian milkweed. 2. Plants that do not work well for attracting butterflies in the region, such as butterfly bush. 3. Recommended caterpillar food plants for local butterflies like monarchs, which utilize milkweeds. 4. Common and locally unique butterflies found in the area, along with their flight times and caterpillar food sources. 5. General comments about the uneven seasons in the USDA