Dormant, Not Dead: Why Your Lawn Looks Tired in Winter

Lawn yellowing during winter is a common issue caused by several factors, including grass dormancy, cold stress, and soil conditions. In many cases, the yellowing is due to grass entering a natural dormancy phase, particularly with warm-season grasses like Bermuda, Zoysia, and St. Augustine. These grasses stop growing and lose their vibrant green color when temperatures drop below 50°F (10°C). Dormancy is a survival mechanism that allows grass to conserve energy and nutrients during colder months. However, excessive foot traffic, compacted soil, or insufficient sunlight during winter can exacerbate yellowing, as the grass is already in a fragile state.

Dormancy is not a sign of a dying lawn but rather a natural process that ensures the grass survives harsh winter conditions. During dormancy, grass slows its metabolic processes, reducing water and nutrient intake, which leads to the temporary yellow or brown appearance. While this is normal, additional stressors like frost damage, poor drainage, or nutrient deficiencies can cause the lawn to appear even more discolored. Homeowners with cool-season grasses, like Kentucky bluegrass or fescue, may not experience full dormancy but might still notice patchy yellowing if the lawn is undernourished or affected by winter conditions.

As temperatures rise and sunlight increases in spring, dormant grass begins to “wake up,” returning to its lush green state. During this period, the roots absorb moisture and nutrients more actively, fueling new growth and repairing winter damage. To help the lawn recover quickly, consider aerating and fertilizing it in late winter or early spring to loosen compacted soil and provide essential nutrients. Avoid overwatering during dormancy to prevent fungal diseases. By allowing the grass its natural dormancy cycle and taking steps to prepare it for spring, you can enjoy a healthier, greener lawn when the warmer weather arrives.

Winter lawn fertilization is beneficial because it helps strengthen the grass's root system during its dormant phase, preparing it for healthier growth in spring. Applying a slow-release fertilizer in late fall or early winter provides essential nutrients, like potassium, which enhance the grass's resilience to cold temperatures, frost, and disease. This ensures the lawn stores energy for a quicker green-up and robust growth when warmer weather returns, resulting in a thicker, healthier lawn in spring.

We offer lawn fertilization with our Lawn Fertilization and Weed Control Programs.