About This Succulent Soil Potting MixMix Horticultural Lava stone consists of a variety of particles, including lava stone, Maifanitum stone and green zeolite, mainly as a succulent planting soil particles, especially suitable for succulent cactus bonsai planting Size and WeightWeight: 10 pounds, does not weigh down roots, neither blown away by the wind nor as heavy as a stone. Mix Lava rocks granules are sifted to a perfect particle size of 1/4 inch (about 5-8mm). Due to processing and transportation, there will be some residue and dust inside the package, please clean it when using Decorative RocksUsed as colored gravel for plant surfaces, it is aesthetically pleasing. It won’t splash mud from watering and keeps the environment clean. It can also be used as garden mulch and potting mulch Improve Soil AerationMix Horticultural gravel has good breath ability, even frequent watering will not lead to waterlogging. Especially for those plants such as orchids that are afraid of stagnant water, it provides good drainage and air permeability needed for plant growth Mixed with SoilMix Horticultural stone can be used alone or mixed with soil or other media, such as peat soil, deer swamp soil, terracotta, vermiculite, perlite, etc. It is used to improve the performance of cultivation media, and it is suitable for all potted plants, especially succulents and bulbous plants