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Pumice - 5 Gallons

Item #: 5PU

Our price: $39.95


Pumice is a soil amendment made from volcanic igneous rock. It provides excellent aeration, drainage, and nutrient control in both container gardens and flowerbeds. read more

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Lead time: 2-3 Business Days

Our Price: $39.95


Pumice is a soil amendment made from volcanic igneous rock. It provides excellent aeration, drainage, and nutrient control in both container gardens and flowerbeds. As a soil amendment, pumice is a good alternative to perlite.

Features & Benefits:

  • Soil conditioner for better aeration and drainage
  • Loosens heavy clay garden soils, letting in air and water for healthy roots
  • Helps retain moisture, reducing watering by as much as 35%
  • Increases bulk density of potting mixes
  • Use pumice to regulate fertilizer feedings
  • Source of trace minerals: phosphorus, potassium, calcium, magnesium, sodium, copper, iron, manganese
  • Will not break down, compact or rot over time
  • Does not attract or host fungi, nematodes, or insects
  • Size: 5 gallons (23 lbs)

Soil Amendment

Use pumice when transplanting plants or mixing potting soil for container gardens or potted plants. Use 10% pumice in soil mixture, or 1 gallon pumice per cubic foot.

For pots without drainage holes, spread a layer of pumice in bottom of container before adding soil or plants. This increases air circulation and drainage necessary for healthy roots and thriving plants.


Coarse pumice makes an excellent mulch for container gardens, potted plants, flower beds, and around shrubs. The soil beneath the mulch stays moist longer and is less likely to compact from watering. Weed problems are minimized with a couple of inches of pumice mulch. It does not break down or rot, so it does not need to be replaced.


Use when preparing seed beds in new turf areas, or as a top dressing on heavily‚Äźtrafficked lawns to restore or maintain soil structure.


Pumice is an excellent bedding additive to worm compost bins. It increases air circulation, prevents matting, and helps control moisture. Use 1-2 cups per tray, or as needed.

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Additional Information

Size 5 gallons
Weight 23 lbs.
Dimensions 10" x 10" x 10"
Key Feature Volcanic rock based soil amendment and growing medium
Origin Made in the U.S.A.

Shipping Information

Shipping Details:
Insured against damage or loss while in transit
This Product Ships To:
US Lower 48
Ships Via:
Fedex or UPS

Questions about the Pumice - 5 Gallons

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  • From Duane Ruckle at 9/20/14 2:41 PM
    • What is the particle size of the "Pumice-5 gallons"?
      Is the color white as shown in the photo?


      Duane Ruckle
    • The pumice particle size ranges from powder to 3/16" nuggets, with most particles in the middle of this range. Color is whitish. Appearance and particle size is similar to dolomite lime.
    • Do you find this question helpful?  Yes  No
  • From john eaton at 1/25/15 5:20 AM
    • What is the average particle size (mm) of the pumice? thank you
    • The stones vary in size but are on average about 0.8mm to 3.2mm. If you look at the product picture of the hand holding the pumice you'll also get an idea of particle size.
      The stones retain their size, i.e., they don't crumble apart when mixing into soil.
    • Do you find this question helpful?  Yes  No

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