Necklace-Pod (Sophora tomentosa) is a tree that may grow 6-10 feet tall with an 8-12 feet spread. Plants should be spaced 36-60 inches apart. It blooms yellow flowers and the fruit are green pods. This tree requires full sun and should be planted in well-drained sandy, loam or clay with an acidic, alkaline pH. It is drought tolerant and attracts butterflies.