They are generally white in color, although some have a slight pink tint. White clover is adapted to many soils but tends to grow best in soils that are moist and low in nitrogen. The best time to control clover is during periods of active growth. Since white clover is a winter perennial, active growth from germinating seeds or existing plants begins in the fall with cooler temperatures and increased moisture. Active growth continues in the fall until night temperatures reach freezing, making fall an ideal time for control applications.
Growth resumes again in the spring as temperatures increase.
Spring applications are best made when night temperatures reach a consistent 50 degrees Fahrenheit. Control will be reduced if herbicide applications are made when clover is flowering, which usually occurs from May to September, depending on the regional climate.