Are dead leaves good for soil?
Keeping this in consideration, are fallen leaves good for the garden?
Fallen leaves are truly nature's gift to gardeners. They make great compost, mulch and fertilizer that can be used everywhere around the landscape. Instead of throwing them away to be wasted in the landfill, use them to benefit your lawn and garden.
Secondly, do dead leaves kill plants?
Leaving dead leaves on top of grass for too long can actually kill your grass. Dead leaves are definitely a good source of nutrients to your plants. You can try and crush or shred them and then mix it with the soil.
Leaves are packed with trace minerals that trees draw up from deep in the soil. When added to your garden, leaves feed earthworms and beneficial microbes. They lighten heavy soils and help sandy soils retain moisture. They make an attractive mulch in the flower garden.