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Roll over image to zoom in Click on image to zoom DescriptionPumice is an all nature soil aerator that enhances drainage in raised beds and pots. Consisting of microscopic pores on the outer surface, pumice releases water at a steady rate whilst retaining nutrients and releasing them back slowly to the soil. Pumice can also be soaked in nutrient solutions for 24hrs prior to mixing with soil. Ideal for bonsai, cactus, succulent and no till gardening enthusiasts for its amazing drainage abilities. Pumice 25 Litres Pumice is a light siliceous vesicular volcanic rock that is suitable for use in horticulture and hydroponics. Its porosity provides air spaces that maintain aerobic conditions around the roots while water is contained within the pores. Surface tension around the outside of the pumice particles increases water-holding capacity of the growing medium. Pumice is a popular growing medium for Cacti, Succulents, Bonsai, Orchids and many other plants. Our pumice is mined from a land-based resource, within 50kms of Lake Taupo in the North Island of New Zealand, and it is characterized by its relative hardness and lightweight in comparison to competing aggregates. The washing and screening of our pumice particularly for horticultural applications means that no ‘fine’ particles are included. Unwashed pumice can cause ‘concreting’ and higher water holding capacity than required, consequently affecting root development. This hardness and porosity allows free drainage lowering the risk of root-rot diseases. Pumice grades:
What is Pumice? Pumice is a lightweight foamy volcanic rock. The bubbles in the matrix are brought about by rapid cooling and depressurisation when the lava is ejected from the volcano. Pumice provides an ideal balance between water holding capacity and air-filled porosity, allowing aerobic conditions around roots while containing an adequate supply of water. The high surface area is ideal for root hairs to penetrate and gain good anchorage for stable plants. Our pumice is mined in the beautiful North Island of New Zealand, from a site near Lake Taupo of New Zealand, and it is characterized by its relative hardness and lightweight in comparison to competing aggregates. Usage: Use pumice for Orchid mixes, grades 7-20 is particularly well suited for orchid cultivation providing the balance of air and water combined with long life. Pumice will not rot or break down, it is less likely to wash out of the pot. For propagation use the smaller grade 1-2 and 1-7. Hardwood cuttings can be stuck in 100% pumice. The variation in particle sizes allows excellent basal contact for supply of water yet the porosity maintains aerobic conditions around the newly formed roots. Slow rooting species such as Conifers, Maples and Camelias are particularly well suited to propagation in pumice. Cacti and Succulents need to open and well-drained potting mix, pumice is ideal for this purpose. Mix 30% pumice with your preferred organic substrates. Pumice has been used extensively for green roof mixes where substrates need to be long-lasting, lightweight, free draining and moisture retentive. Ideal For:
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GRADE ADMIX TYPE EXAMPLES 1-2mm 100% Pumice Hardwood cuttings. Slow rooters Conifers 1-2mm 50% Pumice / 50% Peatmoss Softwood cuttings. Murrayas, Viburnum 1-7mm 60% Pumice / 20% Coarse Sand / 20% Peatmoss Cacti / Succulents Echiveras 1-7mm 100% Pumice Hardwood cuttings. Slow rooters Maples, Camellias 1-7mm 40% Pumice / 30% Medium Bark / 30% Fine Bark Seedling mix, Pup mix. Cymbidiums, Cycads 1-7mm 40% Pumice / 30% Coarse Sand / 30% Peatmoss Stem cuttings Frangipanni, Cordyline 7-20mm 40% Pumice / 30% Coarse Bark / 30% Medium Bark Orchids Cymbidiums Frequently Asked Questions Q. Which pumice grade is best for growing Succulents? A. According to the manufacturer, they suggest using mostly 1-4mm with a little 4-10 mixed though. The pumice should also be mixed with 50 to 75% of fine to medium organic matter like compost and garden soil. Q. What is the PH of this pumice? A. According to the manufacturer "The pH of Pumice is typically pH 6.7 to 6.9" Q. What is the country of origin for this pumice? A. It's from New Zealand. Q. How much does a 25L bag weigh? A. The weight of this item can vary significantly due to moisture content or the weight of pumice rock. We tested some bags at around 21kg but again this can vary. Where can I find pumice?Pumice, a porous volcanic rock, works great as a soil conditioner.. Amazon. ... . Walmart. ... . Etsy. ... . General Pumice. ... . Wayfair. ... . Build A Soil. ... . Nature's Footprint. ... . Bulk Apothecary.. What can I use instead of pumice for plants?Perlite, vermiculite, biochar, rice hulls, and coco coir all are used for similar purposes as pumice, and they each have their advantages and disadvantages compared to pumice.
Which is better pumice or perlite?Yes, pumice is definitely better than perlite in the sense that it is more porous and provides better drainage than perlite. It is also more eco-friendly and does not leave a very large carbon footprint.
Is perlite and pumice the same thing?Pumice is heavier than its leading competitor Perlite, which forces it to stay mixed into your soil so it won't float to the top of your containers and blow away. Lastly, pumice will never decompose, so it never needs replacing (unlike Coco Coir and Peat Moss that tends to rot and must be removed.)
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