Growing grass in the shade: Tips for Success

Having trouble growing grass in a shady area? Follow these tips for the best chance at success.

1. Start with a shade-tolerant variety: St. Augustinegrass (‘Palmetto’ or ‘Seville’), Zoysiagrass (‘Emerald’ or ‘Zeon’) and certain types of Centipedegrass are your best bet.
2. Prune or trim trees and shrubs: Even shade tolerant grasses need a minimum of 4 hours of direct sunlight or 6 hours of partial sunlight to thrive. Where possible, thin out the branches and foliage of nearby trees to allow more sunlight to reach the grass.
3. Improve soil fertility: Shade can affect soil conditions, including nutrient availability. Conduct a soil test to determine the nutrient levels and pH of the soil. Amend the soil based on the results. In lieu of a soil test, aerate and then top-dress the lawn with ½ inch of organic compost, and apply slow-release, balanced, organic (NOT synthetic) fertilizer. Do this in April and October.
4. Irrigate properly: Shaded areas tend to have reduced evapotranspiration rates compared to sunny areas. Adjust your irrigation accordingly, ensuring that the grass receives adequate water without overwatering (less than 1 inch a week during the hot months). Use the cycle and soak method to ensure the water gets deep into the soil to strengthen the roots.
5. Avoid heavy traffic: Minimize foot traffic and other activities that can further stress the grass. Install a stone or gravel path for access.
6. Consider overseeding with shade-tolerant cool-season grass: Overseeding with a shade-tolerant cool-season grass, such as fine fescue or certain types of ryegrass, can help fill in where your warm-season grass is struggling.
7. Mow high: Set your mower to the highest setting (at least 3 inches) and so you’re cutting no more than the top 1/3 of the blade. Keep your blade sharp to minimize stress on the grass.
8. Use alternatives: Even with shade-tolerant warm-season grasses, it’s challenging to achieve the same level of growth and density as in full sun. Shade-tolerant native plants, mulched beds, and natural hardscape can be time-saving, aggravation-saving, and attractive alternatives.