3.5 gallons (56+ cups) - 3/8" minus Natural Cascade Mountain Volcanic Lava rock for use in soil mixes for Bonsai, Succulents, Cactus & soil mixes for specialty nursery plants.
This listing is for anyone wanting to screen their own lava to the size they want. This lava is unscreened as it comes from the quarry and contains all sizes from 3/8 inch to powder and is more economical than our hand screened lava products. Lava is primarily black / dark grey in color.
Mix is composed of and can be screened to approx:
22% 3/8"-1/4" size lava
25% 1/4"- 1/32" size lava
23% 1/32"- 1/120" size lava
30% powder, a good source of trace minerals, and to make a soil mix that holds more moisture.
Pleasing mix of red, grey, black and white. Neutral PH, doesn't rot, all natural, relatively light weight and porous.
- Our 3.5 Gallon box contains 830 cubic inches or over 3.5 gallons liquid measure, or will fill 7 trade gallon containers.
Our lava is hand packed and bagged with a reusable tie for easy storage after you have used part of the bag. If your lava dries before using, moisten it to keep dust from forming. Dust from any rock or potting soil product should not be inhaled and can be irritating for people with sensitive lungs.