Lysiloma watsonii (feather tree) grows as a dense shrub to 2 m tall in cold sites but
will develop into a spreading tree to 6 or 8 m tall in warm areas of southern Arizona. The
graceful, feathery, blue-green foliage con­trasts with the brown bark. The leaves are
retained in mild winters. Fragrant, cream colored flower heads are produced in profusion in the late spring. Scarified seeds germinate readily. The plant has a moderate to fast rate of growth with supplemental irrigation.

L. watsonii will begin to suffer freeze damage -4 degrees C (25 degrees F). Recovery is rapid in the spring. No significant pest or disease problems have been reported. The plant has a tropical effect and is suitable in transi­tional plantings and as a patio tree. The dense foliage is effective as a screen. In colder areas it makes an attractive summer shrub. Cultivated plants may be seen at bo­tanical gardens in southern Arizona and in landscapes in Phoenix and Tucson.