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 December - February
Do not apply fertilizer or lime.
Although the lawn will be dormant, water occasionally to prevent excessive dehydration.
Pick up debris (rocks, sticks, leaves, etc.) from lawn. Do not try to remove excess debris by burning. This could injure the lawn and is a fire hazard.
Apply broadleaf herbicides to control chickweed, henbit, etc. St. Augustinegrass is sensitive to certain postemergence herbicides like 2,4-D and MSMA, so follow label directions for reducing rates, and use with caution. Selected herbicides like atrazine and simazine can be applied in November or December to control annual bluegrass and several winter annual broadleaf weeds. Read the label and follow directions carefully.
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