Sumloty Pumice for Plants – 3 Qt, 1/4-Inch Horticultural Pumice Stone

Sumloty Pumice for Plants arrives in a generous 3-quart bag with a consistent 1/4-inch particle size, designed to blend smoothly into your existing potting soil, garden mixes, or hydroponic substrates. The lightweight, airy texture makes it a practical addition for indoor or outdoor setups, whether you’re potting a new succulent collection or refreshing a container garden.

This pumice is 100 percent natural, sterile, and pH-neutral, offering a clean, inert amendment that supports better drainage and aeration. When used with potted plants such as succulents, orchids, or vegetables, you may notice improved airflow around roots, reduced soil compaction, and less standing water—factors that contribute to a steadier growth rhythm and healthier-looking foliage.

Key benefits

• Improves drainage and soil aeration with porous, lightweight particles
• Reduces soil compaction and waterlogging to support root respiration
• Promotes a stronger root system and potentially more vigorous growth
• 100% natural, sterile, and pH-neutral for versatile use
• Easy to mix into potting soil, elevated beds, or hydroponic substrates

Practical uses

• Mix into potting soil for succulents, cacti, bonsai, and orchids
• Incorporate into hydroponic mixes to improve drainage and root access to air
• Top-dress around plants to enhance moisture management and aeration at the root zone
• Root cuttings and start new plants with an open, well-drained medium
• Use as a natural filtration medium in aquariums or terrariums

Note: As a natural mineral from mined deposits, Sumloty pumice can include stones with similar density and size. We screen for a consistent 1/4-inch size, but natural variation may occur. If you have questions, please contact us and we will respond within 24 hours.