St. Augustinegrass is a warm-season grass with medium density and medium to dark green color. Of all the warm season grasses, it is the least cold tolerant and has the coarsest leaf texture. St. Augustinegrass grows best in warm, humid areas that are not exposed to long periods of cold weather. In fact, its lack of cold tolerance is the major limiting factor in determining its use in North Carolina. Centipedegrass can often be confused with St. Augustinegrass. However, centipedegrass has alternating leaves at the nodes whereas St. Augustinegrass has opposite leaves at the nodes. Centipedegrass also has a more pointed, slenderer leaf blade than St. Augustinegrass. Both leaf blades are V-shaped in cross section, but that of St. Augustinegrass has a more obviously boat-shaped tip.
lawn Maintenance for September - November
Check for Brown (Large) Patch.
DO NOT fertilize St. Augustinegrass after August 31.
Follow June through August guidelines.
Water to prevent drought stress while the grass is actively growing and after the lawn goes dormant to prevent excessive dehydration.
Same as March through May guidelines.
Check for thatch layer in early September. If the thatch layer is ¾ inches thick, plan to dethatch in the spring.
If crabgrass and goosegrass are present, plan to apply a preemergence herbicide next spring.
seedhead a thick spike with spikelets imbedded along the sides
leaves folded in the bud
short fringe of hairs, 0.01 inches (0.3 mm) long
Growth Season/Life Cycle
warm season turf
Leaf blade tip shape
boat shaped; blunt; not hairy
Leaf blade width
0.16 - 0.4 inches (4 - 10 mm) wide
continuous; not hairy, constricted
open; sheath is slightly hairy along edges and toward top