How Much Light Does Your Lawn Need? Turfgrass Sun Requirements

Choosing the right grass starts with assessing sunshine and water availability, plus your willingness to invest labor.

Grass Categories

Cool-season: Tall fescue – stays green year-round.
Warm-season: Bermudagrass, zoysiagrass, centipedegrass, seashore paspalum, St. Augustinegrass – green most of the year, brown/dormant in winter (St. Augustine stays light green on the coast).

Shade Tolerance Reality

Tall fescue is the most shade-tolerant, but NO grass grows well in less than 4 hours direct sun (or 8 hours filtered light under tall trees). Six hours direct sun is minimum for vigorous growth. Red fescue and bluegrass are more shade-tolerant but not heat-tolerant – only viable if summer temps stay below 90°F (unlikely in Georgia).

Light Requirements by Grass Type

Grass	Light Requirement
Bermudagrass	Full sunshine to very light shade
Seashore paspalum	Full sunshine to very light shade
Centipedegrass	Full sunshine to very light shade
'Meyer' zoysiagrass	Full sunshine to light shade
'Emerald' zoysiagrass	Full sunshine to partial shade
St. Augustinegrass	Full sunshine to partial shade
Tall fescue	Light shade to partial shade

Defining Light Levels

• Full sunshine: 8 hours unfiltered sun between sunrise and sunset
• Light shade: 6 hours sun filtered through high pines/scattered hardwoods OR 6 hours unfiltered sun
• Partial shade: 8 hours filtered through high pines OR 4 hours direct sun
• Shade: All-day filtered through scattered hardwoods OR 3 hours direct sun
• Dense shade: No direct sun all day (e.g., under southern magnolia or between two houses)

No grass grows well in shade or dense shade. Save yourself grief: plant groundcovers, shade-tolerant perennials, or mulch.

In shade, mondo grass can make a nice "lawn".