Diatomite!
Diatomite is high in oxygen, trace elements, minerals, silica, absorbent, porous, long lasting, environmentally friendly, ph neutral, sterile, natural, all factors necessary for heathy plants.

Diatomite moisture retaining rocks are great for all your planting needs. Whether you use them for top dressing or moisture retention in the base of your pots, you will love them.

Diatomite releases a vast spectrum of micro nutrients into your soil. It is high in silica for stronger plant cell structure. Diatomite is sterile and PH neutral. It expells excess water, preventing root rot in your plants. Diatomite is fresh water mined, no salt or alkali is used in production.

On the bottom of your planter, use diatomite for optimum moisture humidity and air circulation for your plant's roots. Insects don't like contact wiith the Diatomite rocks so you will have less chance of infestation. Diatomite absorbs 150% of it's weight in water an slowly releases it into the soil mix.

As a top dressing, Diatomite makes beautiful prospective rocks. It insulates from and reflects sunlight. It improves the humidity around your plant and repels insects. Diatomite is light weight.

Our Diatomite comes in 4 different sizes.
Size #1 is 0.5mm-2mm
Size #2 is 2mm-7mm
Size #3 is 7mm-15mm
Size #4 is 15mm-25mm