pumice for cactus soil Pumice 4-20mm (Cactus/Succulent/Bonsai)
SKU: 85533019554
pumice for cactus soil

pumice for cactus soil Pumice 4-20mm (Cactus/Succulent/Bonsai)

Sale price$25.92 Regular price$28.80
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Description

pumice for cactus soil Pumice 4-20mm (Cactus/Succulent/Bonsai)A natural, coarse grade pumice that supports healthy root systems in larger pots and more mature plants. This pumice size is ideal for growers who require increased drainage and airflow while still maintaining nutrient holding capability. With pores that naturally absorb and slowly release water and nutrients, it helps create optimal growing conditions in bonsai, succulents, and cactus gardens. Features Coarse particle size: 420mm Excellent for

A natural, coarse-grade pumice that supports healthy root systems in larger pots and more mature plants. This pumice size is ideal for growers who require increased drainage and airflow while still maintaining nutrient-holding capability.

With pores that naturally absorb and slowly release water and nutrients, it helps create optimal growing conditions in bonsai, succulents, and cactus gardens.

Features

  • Coarse particle size: 4–20mm

  • Excellent for drainage and aeration

  • Retains water and nutrients in micro-pores

  • Fully washed and screened – no dust or fines

  • Sustainably sourced from a land-based site near Lake Taupo, NZ

  • Naturally sterile, pH-neutral, and chemically inert

  • Suitable for hydroponics, raised beds, pots, and dry-loving plants

Why You Should Buy

This coarser grade of pumice is especially well-suited to larger plants, including older bonsai and large succulents, which benefit from increased airflow around roots. Unlike soil additives that compact over time, this pumice maintains its structure long-term. Its superior drainage minimizes the risk of overwatering, while the porous surface helps hold just enough moisture and nutrients for gradual release, supporting stronger, more resilient plants.

Common Applications

  • Bonsai cultivation with a need for heavier drainage

  • Cactus and succulent soil mixes

  • Soil amendment for large pots or garden beds

  • Hydroponic growing as part of an inert medium

  • Soil conditioning in no-till gardening

FAQs

What’s the difference between this and the 1–7mm grade?
The 4–20mm grade has larger particles, offering even greater drainage and airflow, making it ideal for larger root systems or plants in bigger containers.

Is it pre-washed?
Yes, it's washed and screened to remove dust and fines, ensuring it won’t compact or “concrete” in your soil mix.

Can I mix this with organic potting soil?
Absolutely. It can be mixed directly with soil to improve structure and oxygenation.

Will this break down over time?
No, pumice is a long-lasting mineral aggregate that keeps its shape and function.

Can it be used in hydroponic systems?
Yes, it’s inert and pH neutral, making it perfect for hydroponic applications or as a base media layer.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85533019554

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Jessica h
Grantham, US
★★★★★ 5
Great for wide toddler feet
Size: 6 Wide Toddler, Color: Tan
Great for wide toddler feet and super cute.
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Reviewed in the United States on June 3, 2026
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Haley Harris
Birmingham, US
★★★★★ 3
Nice quality but a bit big
Size: 8 Wide Toddler, Color: Tan
These seem like great quality. 3 stars because they are large on my child’s wide foot, so I imagine they are even bigger on narrow and/or average feet.
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Reviewed in the United States on May 31, 2026
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TKane
Belleville, US
★★★★★ 1
SENT USED
Size: 5 Wide Toddler, Color: Brown, Size: 5 Wide Toddler, Color: Brown
I’ve purchased many pair of STQ kid shoes and have been extremely happy with the product and after receiving these shoes, I am very disappointed! Received used…Placed in someone else’s packaging. The Bottom and front of shoes are black. Photos attached. I will be returning.
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Reviewed in the United States on April 20, 2026
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Shelley
Lowell, US
★★★★★ 5
Love these!
Size: 7 Wide Toddler, Color: White
So far these are amazing for my toddlers super wide feet. They are super comfy on the soles as well when you push down.
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Reviewed in the United States on March 12, 2026
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Stephanie DiGregorio
New York, US
★★★★★ 5
Great first pair of shoes
Size: 9-12 Months Infant, Color: Brooks Navy
Love love love! The cutest shoes and great reviews led me to purchase these as our first shoes. Nice leather upper material, super easy to put on, and soft/comfortable for my little guy.
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Reviewed in the United States on April 12, 2026

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