Horticultural Pumice Stones for Plants – Coarse 10-20mm – 5L (or 2kg)
A must-have substrate for any serious plant parent. Our coarse horticultural pumice (10–20mm) is a natural volcanic rock that dramatically improves drainage and aeration in your potting mixes — giving roots the breathing room they need to thrive.
Unlike perlite, pumice won't float to the surface or break down over time. It stays put, holds its structure, and keeps working season after season. It's pH-neutral, chemical-free, and pre-washed — ready to use straight from the bag.
Whether you're mixing it into a chunky aroid blend, using it as a drainage layer, building a semi-hydro setup, or top-dressing your pots, this pumice does the job beautifully. Perfect for aroids, succulents, cacti, orchids, bonsai, and pretty much any plant that hates wet feet.
What's in the bag:
- 2kg of natural, pre-washed horticultural pumice
- Coarse grade: 10–20mm granules
- 100% volcanic rock — pH-neutral and chemical-free
- Lightweight, porous, and long-lasting
Use it for:
- Soil mixes — improves aeration and prevents compaction
- Semi-hydroponics and leca-style setups
- Drainage layers in pots and planters
- Top dressing and decorative mulch
- Terrariums, aquascaping, and reptile enclosures