Vervain (Verbena lasiostachys) is a native perennial herb in the Verbenaceae (Verbena) family that grows in northern, southern and central California, as well as Oregon. It is found primarily along the coast, in the Coast Ranges, foothills, and scattered inland locations. A pioneer species, t tends to grow in wet places, at elevations from 0-8200 feet. It is an aggressive spreader and should be used where it can be controlled. Its long blooming season is a plus, and it is a good butterfly plant.