Mother Earth® Hydroton® Original Expanded Clay Pebbles

Hydroton, otherwise known as lightweight expanded clay aggregate (Leca for short):  These porous pebbles absorb moisture and allow for fantastic drainage of water from the roots of the plant.  Not only do they absorb moisture, they’ll absorb any nutrient solution you choose to add.  The pores in the pebbles, the space between them, and their superior drainage function keeps air circulating so roots get plenty of oxygen.  They can last a long time. Just wash and reuse as many times as you need. You don’t have to worry about losing nutrients through numerous washes because there aren’t any to begin with. If they lose their usefulness, you can add them to the soil of your outdoor gardens to increase aeration and organic content.  They’re pH neutral and rather inhospitable to bugs.  You can crush them to increase water retention for use in the germination stage of growing.