The answer to 'why is my paver thin grass' is that there are a few common causes for thin grass around pavers. The most likely reasons are poor soil preparation, inadequate sun exposure, or improper watering. Thin grass around pavers is often a sign that the soil needs to be amended or that the grass is not getting enough sunlight or water to thrive.
To troubleshoot the issue, first check the soil quality around the pavers. The soil may be too compacted or lack the necessary nutrients for healthy grass growth. You can try aerating the soil and adding a layer of high-quality topsoil or compost to improve the growing conditions. Also ensure the grass is getting at least 6 hours of direct sunlight per day, as pavers can create shaded areas. Finally, make sure you are watering the grass regularly, about 1-2 inches per week, to keep the soil moist but not waterlogged.