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MDPQT Horticultural Pumice for Plants Professional Sifted (50 QT, 3/8 inch)

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Availability: 17 left in stock
Fulfilled by Amazon

Arrives Monday, Jan 12
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Size: 3/8 inch


Color: 50QT


Features

  • Pumice stones are porous, light volcanic eruption rocks, water absorption rate 55%
  • 100% Natural growing media
  • Natural stone will vary in color from white to light grey
  • No artificial coloring, no dyes, no chemicals

Description

Pumice stones are porous, light volcanic eruption rocks, water absorption rate 55%

Brand: MDPQT


Style: Modern


Item Weight: 18.76 Kilograms


Product Dimensions: 10 x 2 x 10 inches


Item Weight: 41.3 pounds


Item model number: QS-001


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jan 12

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


  • Great pumice for soil or pon
Size: 1/4 inch Color: 12QT
I love this pumice for my aroid mix and pon mix. It really is great quality and mixes well. It does have a lot of dust so I sift it to keep my pon from being dusty.
Reviewed in the United States on October 12, 2025 by Sage

  • Organic Pumice, Great Price
Size: 3/8 inch Color: 20QT
I would definitely buy these again. I purchased both the 3/8” and 1/4” pumice, this review is for both. Very basic packaging but functional, I use my own containers anyways. No unpleasant odor, true to size, great mixture and texture, very few non-rock “debris,” slightly damp/minimal dust. I didn’t wash the pumice, so the dust is just another soil additive. Pic 1: 3/8” after delivery, OVER 20qt! Pic 2: sieved pumice into 3/8” 20qt tote and 0.39” 12qt tote. Pic 3: non-rock “debris.” Pic 4: 1/4” after delivery, slight over 20qt. Pic 5: sieved pumice into 1/4” 20qt tote and 0.39” 6.8qt tote. Pic 6: non-rock “debris.” Because of the mixed reviews, I decided I had the time and wanted to give my perspective. While I do not want to dismiss other people’s experiences, maybe they got bad batches? Anyhoos, I will be buying this again. Thanks so much! ^_^ ... show more
Reviewed in the United States on July 14, 2024 by Nyxius Nyxius

  • Decent product but incredibly dirty and full of debris
Size: 1/2 inch Color: 8QT
This pumice is actually a very nice size and generally a decent quality. It is, however, unbelievably dirty and required multiple rinses to clean it. Also contained charcoal bits which are not uncommon in mining but usually these are cleaned before the product is offered for horticultural use. I also found a cigarette butt in mine. That was disgusting. I really hope the seller can find a way to get a cleaner product with less debris. All that said, I will be using it so there's that. ... show more
Reviewed in the United States on October 13, 2025 by Pro Bono

  • Good size but very dusty.
Size: 3/8 inch Color: 20QT
Pumice was good as listed, small enough for chonky mixes but as noted by other reviewers was quite dusty and pouring into another container was quite messy. Would buy again but maybe soak the bag prior to transferring into the holding container to minimize the dust mess that went everywhere in the kitchen. The two hand images are just a scoop off the top when opened. The other is while being washed, quite dirty. ... show more
Reviewed in the United States on April 8, 2025 by Bryson S. Bryson S.

  • STOP using perlite, use this Pumice instead!!!
Size: 3/8 inch Color: 8QT
I prefer Pomus over perlite for the environmental factor. Perlite is man-made and has a large carbon footprint, is made from things that are harmful for the environment, it is not biodegradable. Pumice was created by nature in nature and is still just nature when you’re done with it. I feel like it also adds a lot more aeration and drainage to my plants. It’s much better in the long run than perlite. It’s also reusable, it lasts a very long time, you can sterilize it, it doesn’t break down and compress like perlite can. This is a great size for plants that like a chunky mix. I use it in place of Lecca also. Love it! The drainage if these bigger chunks is awesome! I adore it in pebble trays as more surface area means more evaporation. I feel it raises the humidity a lot faster around the plants than regular pebbles. You do need to rinse it really well I just throw it in a 5 gallon bucket use the hose. I would highly recommend this product everyone. ... show more
Reviewed in the United States on October 6, 2023 by Placeholder

  • LOTS of cleaning required! - Absolutely terrible quality.
Size: 1/4 inch Color: 20QT
Why did you pick this product vs others?: It was the right size for my purpose (APL Bonsai mix), offered a good price for the quantity, & I was forced to order off Amazon due to the pumice shortage in my area - No one had the right size granules in the qty I needed. Drainage: Will turn to cement unless you rinse it about 1,000 times .. I had to spend WAY too much time rinsing and cleaning to render this garbage even remotely usable. The photos show the cement sludge that will clog your roots and pot drainage if not rinsed through properly. All that sludge is from rinsing only about a half gallon of material. You can imagine the entire 20qt batch. Ridiculous. Appearance: Lots of fines / lots of random debris amidst the pumice I had to sift out. I'd skip purchasing this at all costs, despite the price. It's 100% not worth the time and effort it takes to clean. Highly recommend going with a cleaner alternative - I will never buy from this supplier again. ... show more
Reviewed in the United States on June 24, 2025 by Karate Karate

  • Good for the price
Size: 1/4 inch Color: 20QT
Good quantity and fair quality, accurately described by seller, so I'm happy with what i received. Good enough for my large cactus.
Reviewed in the United States on August 7, 2025 by CNS77

  • Largest Size and Best Value for Money on Amazon but Quality is So-So
Size: 3/8 inch Color: 20QT
Seems to be the cheapest, largest, and most value for the price horticultural pumice you can find on Amazon. Obviously going to a landscape supply yard is much more cost effective and higher quality. Sometimes these bags of pumice have pieces of plastic in them and last time I bought one, it had small pieces of charcoal/burnt wood in it. I use it to make soil for Proteaceae family plants and it works fine for that. ... show more
Reviewed in the United States on September 22, 2025 by Chrissy

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