LECA – lightweight expanded clay aggregate. Also known as clay balls.
LECA provides excellent drainage and aeration while retaining moisture in your potting mix. The clay retains the water and releases it for the plant’s use a little at a time. The clay balls prevent the plants from completely drying out and still provides proper drainage.
You can use it as a base layer in your pot, mix some into the potting mix or use it as the sole substrate for your hydro plants.
We recommend you rinse the LECA before use to remove the clay dust. To avoid plumbing problems, rinse it outside, not under the kitchen tap.
