Buckwheat hulls are my go-to mulch
Using mulch to conserve water, keep soil cool and root systems moist is one of the smartest moves you can make in your garden.
Buckwheat hulls have been my go-to organic mulch for many years. They are expensive, however, and not suitable for every garden. Bark mulch is a more practical choice for gardens where children and pets play; it stands up better and lasts longer.
But if your garden is more of a retreat, nothing is as aesthetically pleasing and well performing than a layer of buckwheat hulls, (not too thick). In addition to conserving water and acting as a barrier to weeds, they allow the soil to breathe due to their lighter properties. And over time, buckwheat hulls add organic matter to the soil.