Determining if the grass on your lawn is getting too much shade can be difficult. Here are some tips to help you identify if your lawn is in desperate need of sunlight.
If there’s an unevenness in height with some patches growing faster than others, your lawn needs light. The blades are growing faster to break out of the shade to reach sunlight.
four hours of sunlight, shade shouldn't be a problem since it can photosynthesize. If your grass is getting enough sunlight, there may be another issue.