Slate mulch: aesthetic and useful mulch

Mulch is both useful and decorative in the garden. In summer, it keeps the soil cool by limiting water evaporation due to the hot sun. Thus the roots retain their source of water. In winter, mulch has another function: it keeps the soil warm. Mulching makes it possible to insulate the soil from cold and external frost, which can be fatal for the roots. There are several materials for making this protection. Slate mulch is insulating, aesthetic and nutritious.

Slate in the garden

Slate mulch has the advantage of displaying different plants in the garden. It adds a mineral touch that makes the garden particularly aesthetic. In addition to creating this beautiful contrast with the plants, the slate reveals different colors that shimmer depending on the light.

When we think of slate, we also think of a well-structured Japanese garden, but also of the atmosphere of Brittany and its charming stone houses. This material also fits perfectly into the natural landscape.

slate mulch
Credit: jax10289 / iStock

Advantages of slate

Apart from its aesthetic side, slate has many advantages. For starters, it has a very long life, reduces watering frequency and prevents weeds from spreading. It is also resistant to winds, and its flat shape allows for perfect ground coverage.

Grow blue plants with slate

Slate mulch also “feeds” acidophilic plants, i.e. those that need acidic soil. This is the case with hydrangeas, camellias or even rhododendrons.

Blue hydrangeas are the hardest to get, yet all you have to do is lay a slate under them to get that color. Slate has acid and iron properties that allow plants to take on this color.