NATURAL PUMICE FOR PLANTS: 100% natural volcanic rock with no additives or fillers; improves soil structure, enhances fertilizer efficiency, and promotes plant health; a long-lasting, sustainable alternative to perlite that won't float or break down LIGHTWEIGHT & AIRY: Prevents soil compaction and keeps mixes light and well-draining; its porous structure holds moisture and nutrients, then slowly releases them as needed, enhancing aeration, absorption, and giving roots space to grow GREAT WATER RETENTION: Pumice holds moisture in its porous structure for steady hydration; it improves water retention, prevents root rot by draining excess water, reduces watering frequency, and conserves water for healthier plants PUMICE FOR POTTING SOIL: The perfect amendment for any potting soil mix, ideal for succulents, cacti, bonsai, and container plants; filtered to 3/8" to 1/4", this size is great for all-purpose use, from potting mixes to garden beds SUSTAINABILITY: We are dedicated to crafting sustainable, high-quality products that support plant health; through our non-profit partnerships we donate a portion of the sale of our soil amendments to plant a tree in the world's most deforested areas Sol Soil Potting Mix Amendments