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Item Number: PSO150

Perlite (4 Cu Ft)

Perlite for Superior Drainage & Aeration

Perlite is a gardener’s go-to for loosening compacted soil, improving drainage, and increasing aeration. Coarse horticultural grade perlite is a lightweight, naturally occurring volcanic rock that has been heat-expanded into a porous, absorbent medium—ideal for seed starting, propagation, and custom potting mixes. It works as a soil amendment or as a hydroponic medium—for both home gardeners and commercial growers.

Key Features:

  • Perlite (coarse) – ideal for seed starting, propagation, and container gardening
  • Granule size: 1/16" to 5/8" for optimal drainage and aeration
  • Enhances soil structure and prevents compaction
    Sterile, odorless, pH-neutral, and non-toxic
  • Long-lasting—resists breakdown over time
  • CDFA registered - organic input material

Benefits:

  • Perlite improves water retention while promoting fast drainage
  • Reduces the risk of root rot and supports healthy root growth
  • Maintains oxygen flow in the soil, essential for plant vitality
  • Perfect for mixing with coco coir, compost, or other soil amendments
  • Does not affect pH—ideal for sensitive plants and hydroponic systems

Ideal Uses:

  • Hydroponic medium for indoor or greenhouse setups
  • Seed starting and plant propagation
  • Potting mix for cuttings and young plants
  • Helpful for succulents, cuttings, or any plants sensitive to excess moisture.
  • Container gardening and raised beds
  • Loosening heavy or compacted soils

Why Choose This Horticultural Grade Perlite?

Our NorCal Horticultural Grade Perlite is professional-quality and ready to mix into any growing setup. Whether you're cultivating cuttings, improving drainage in pots, or building a hydroponic growing medium, this product delivers reliable performance for both home gardeners and commercial growers. Looking for more ways to grow stronger healthier plants? See our complete collection of growing mediums and soil amendments and soil testing supplies

Approved for Organic Agriculture by the California Department of Food and Agriculture
Quantity Discounts for Perlite (4 Cu Ft)
Buy 5 for $29.69 each
Buy 10 for $28.04 each
$32.99
Next-day shipping available

Check Your Zone Compatibility:

Shipping Information

Ships from Northern CA.

Does not qualify for Flat Rate Shipping.

Shipping Weight: 30.0 lb

Dimensions: 27.5"L x 15.5"W x 13.5"H

Features

  • Use for Propagation

Characteristics

Organic Status: Approved for Use in Certified Organic Agriculture
Organic Certifier: CDFA

Use Instructions

Useful Information

Guarantee

View full details

Customer Reviews

Based on 7 reviews
57%
(4)
14%
(1)
14%
(1)
0%
(0)
14%
(1)
C
Cal Rowland
Great Buy

I'm renovating my raised beds and adding new compost. Adding perlite is a great product to improve drainage and reduce compacting in planting beds, and the 4 cubic foot bag of perlite is a great buy.

S
Sarah Megan Ross
high quality bulk perlite

great price big bag

N
NEIL DORIN
decent price/poor quality

I'm assuming this perlite was a certain grade at one time but by the time I received it, it was mostly powder, seriously. I would not recommend this particular product.

D
Dwayne
Great

I use this for better aeration in my soil and works great. Only thing is it starts to work its way to the top of soil overtime. might try Pumice next time.

A
Asbury Village Farm
Good Product and Price

Very good product for transplant mix. Has a good mix of large and fine grains, which is perfect for most cell flats. I use it in cells as small as a 200 cell flat with no problems. I don't understand why the previous reviewer felt the need to sift it, this is completely unnecessary.