Zoysia Soil pH Guide

Ideal soil pH for zoysia is 6.0-6.5 — the same range as bermuda. Outside this range, nutrients become locked in the soil regardless of how much fertilizer you apply. Test soil at least once per year, ideally in late winter before the growing season starts. Low pH (below 6.0): apply pelletized lime at soil test recommendations. High pH (above 6.5): apply pelletized sulfur at 5 lbs per 1,000 sq ft only when air temps are below 75°F, recheck in 3 months. Large pH shifts take multiple seasons — do not over-apply amendments trying to rush the process. Iron chlorosis (yellow leaves, green veins) often indicates high pH locking out iron.