⭐ Black Lava Rock for Plants, Premium Sifted Bonsai and Cactus Soil Aggregate Used for Top Dressing, Gardening, Terrariums | Drainage Gravel Decorative Stones - 20 Quart

Black Lava is commonly used in bonsai as an additive to soils. It is a solidified molten rock that is formed after molten lava from a volcano cools.While lava would be a pretty good medium to promote tree growth by itself as it drains very well, it is best used in a mix. Black lava will also help prevent soil compaction in your mix and give it structure.

HOW DO I USE IT?
Repot your bonsai tree in this mixed with other bonsai soil amendments (most common are akadama and pumice) to promote great moisture retention and drainage. Be sure your bonsai pot has holes in the bottom covered by bonsai mesh. Each micro climate may require different amounts of water. On very hot/dry days you may need to water two/three times while around freezing you may need to water just once per month. Push your finger 1" into the soil and feel for moisture. If it is dry, it is time to water.

CAUTION: Do not breathe the dust from lava, as it is very abrasive and not good to get in your lungs or eyes. We sifted the majority of the dust out of the lava prior to bagging, however more will be created in the shipping process. It is recommended to utilize a dust mask whenever dealing with lava dust.