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Description
pumice potting mix Pumice Coarse mix 5 Litre Bag – growshop.co.nzPumice is an excellent soil conditioner, as it is highly porous volcanic rock, giving it excellent water and air holding properties. Advantages of using pumice in potting media and garden soils include The porous nature of pumice allows it to hold vital nutrients in the microscopic surface pores, which helps regulate fertilizer feedings. It can even be supercharged with nutrients before it is added to the growing medium Excellent conditioner for soils
Pumice is an excellent soil conditioner, as it is highly porous volcanic rock, giving it excellent water and air holding properties. Advantages of using pumice in potting media and garden soils include
- The porous nature of pumice allows it to hold vital nutrients in the microscopic surface pores, which helps regulate fertilizer feedings. It can even be supercharged with nutrients before it is added to the growing medium
- Excellent conditioner for soils that need increased aeration and drainage, as when growing cacti, bromeliads, succulents, or when rooting cuttings
- Loosens the density of heavy clay garden soils, letting in the air and water plants need
- Increases water retention in light and sandy soils
- Makes tillage easier, reduces crusting, cracking, flooding and shrink-swelling
- Holds moisture in the soil, reducing watering requirements, yet pumice will not compact or become soggy
- Pumice is inorganic, so it will not decompose or compact over time, meaning it functions continuously and can be recycled and reused
- Pumice is pH neutral
- Pumice does not attract or host fungi, nematodes, or insects
- Pumice makes an excellent component to composts, mitigating volatilization during composting and then contributing in-soil
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4.6 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Pigeons don't eat it as much. Good thing
Style: Wild Bird Food
They love it
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Great filter at Great price.
Pattern Name: 14x14x1, Style: Merv 8
Prefect fit and works great. We have these on subscription to match our system filter replacement reminder.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
⭐️⭐️⭐️⭐️⭐️ I can breathe again — and my house says thank you 😂
Pattern Name: 20x20x1, Style: Merv 11
⭐️⭐️⭐️⭐️⭐️ I can breathe again — and my house says thank you 😂
These Amazon Basics MERV 11 air filters have been a game changer for my HVAC system. I installed them and immediately felt like my home went from “dust tornado aftermath” to “spa-day air vibes.” Whether it’s pollen, pet hair, or mystery dust bunnies lingering in the corners, these filters make the air feel noticeably cleaner and fresher.
Installation was about as easy as ripping plastic wrap off a new gadget — pop out the old filter, slide these in, and suddenly the air quality goes from “huh?” to “ahhh.” The electrostatic pleated design grabs everything from sneaky dust motes to pet dander like a champ, and I can actually tell when the AC kicks on that the air feels crisper — in a good way. 🌬️
Between the six count and the solid MERV rating, this was a smart purchase that keeps my HVAC happy and my allergies way more manageable. If you want clean air without the hassle, these filters are a fantastic value and really get the job done. Highly recommend!
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Reviewed in the United States on February 26, 2026
★★★★★ 5
Amazon Basics MERV 11 Filters: Solid Performance Without the Premium Price
Pattern Name: 20x20x1, Style: Merv 11
Amazon Basics MERV 11 Filters: Solid Performance Without the Premium Price
I’ve been using these Amazon Basics 20x20x1 MERV 11 filters in my home HVAC system, and overall they’ve been a very dependable option for routine filter changes. I like buying them in a 6-pack because it takes the hassle out of remembering to reorder every couple of months, and the per-filter cost is noticeably lower than the big-name brands at the hardware store.
Installation is straightforward. The actual size fits my return slot properly with no bending or forcing, and airflow has remained strong. With MERV 11, these strike a nice balance for my setup — noticeably better dust and pollen capture than basic MERV 5 or 8 filters, but without putting obvious strain on the system. After about a month of use, the filters clearly show they’re doing their job, collecting a visible layer of dust and fine debris.
A few things to keep in mind. The cardboard frame isn’t as rigid as some premium filters, and they’re a bit thinner than brands like Filtrete. They’ve held up fine for me during normal use, but I wouldn’t try to stretch them much past the recommended replacement interval. Also, if you have an older or low-powered HVAC system, MERV 11 may be more filtration than you need — in that case, a lower MERV option might make more sense.
Bottom line: These Amazon Basics MERV 11 filters are a practical, budget-friendly choice that deliver solid filtration and good airflow for regular HVAC maintenance, as long as you stick to timely replacements and don’t expect premium-brand rigidity.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Perfect fit, lasts a long time, and a great price.
Pattern Name: 20x20x1, Style: Merv 5
These filters are a perfect size, they're well-made (I don't notice any more dust in the house than "normal"), and so far, they last longer than I had expected (they're made to last 30 days, and the one I have in has lasted 90 days). So for this 6-pack, what should have lasted 6 months may actually last more like 3 years! And these are the best deal I could find on the internet. I'd definitely recommend them.
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Reviewed in the United States on April 12, 2026