Gemma Watering Stones Ltd. produces horticultural grade pumice from raw pumice mined in British Columbia, Canada. The deposit yeilds pumice of 66% silica and 16% alumina, with a pH of 7.0, MOHS hardness of 5.5, creamy white colour and a liquid absorption capacity of 40%.

Gemma Watering Stones Ltd.
1275 McKinley Rd
Ladysmith, BC, Canada
V9G 1R2


Phone (250) 245-8651

Visit our online store for flexible planter liners, water test tube kits, Gemma Planters and 'Watering Stones' ( orchid media.)