SKU: 33693672025
gritty potting mix

gritty potting mix Molly's Gritty Mix for Cactus & Bonsai

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Description

gritty potting mix Molly's Gritty Mix for Cactus & BonsaiQuick answer: what is Molly's Succulent Mix? For: succulents, cacti, bonsai, Haworthia, Echeveria, Sedum, Jade, and any arid environment plant. What's in it: high mineral gritty blend of pumice, lava rock, and crushed bark. Low organic matter by design. Why it works: succulent roots are built to drink fast and dry out fast. The gritty structure drains in seconds and holds zero standing water, so roots don't rot. Pre rinsed and pH balanced straight

Quick answer: what is Molly's Succulent Mix?

  • For: succulents, cacti, bonsai, Haworthia, Echeveria, Sedum, Jade, and any arid-environment plant.
  • What's in it: high-mineral gritty blend of pumice, lava rock, and crushed bark. Low organic matter by design.
  • Why it works: succulent roots are built to drink fast and dry out fast. The gritty structure drains in seconds and holds zero standing water, so roots don't rot.
  • Pre-rinsed and pH-balanced straight from the bag. No salt flush required.
  • Bonsai-safe. The grit profile matches what serious bonsai growers blend by hand from akadama, pumice, and lava.

More plant-specific guidance: Ultimate guide to growing succulents indoors, Potting soil vs potting mix.

Succulents and cacti evolved in arid, mineral-rich environments where water moves through gritty substrate in seconds. Their roots are built to drink fast and dry out fast. Standard potting soil holds moisture for days, suffocates the roots, and rots them from the bottom up. The fix is a high-mineral, low-organic, gritty mix.

Molly's Succulent Mix is engineered to mimic native desert and rocky-slope substrates. A blend of pumice, lava rock, and a small amount of organic matter that drains in seconds and forces the soak-and-dry watering rhythm succulents need.

The gritty-mix philosophy

Most "succulent soil" sold at garden centres is regular potting soil with sand mixed in. That's not what these plants want. The right mix is roughly 70% mineral aggregate (pumice and lava rock) and 30% structural organic (coir, charcoal). Water hits the surface and runs through within seconds. Roots get a brief, intense drink, then dry conditions for the next 1 to 2 weeks. That's how succulents stay alive in pots.

What's in the bag

  • Pumice (volcanic, lightweight): the mineral backbone. Holds a tiny amount of water inside its porous structure, but lets the rest drain freely.
  • Lava rock (red lava): chunky drainage and heat retention. Roots love the warmth differential it creates.
  • Coir fiber (small percentage): just enough organic to retain a little humidity and prevent the mix from drying to a brick. Not enough to compromise drainage.
  • Horticultural charcoal: filters salts from tap water (succulents are surprisingly sensitive to mineral buildup).
  • Calcitic limestone (trace): buffers pH to the slightly alkaline range (6.5 to 7.5) most desert succulents prefer.

Low peat content, no worm castings (succulents don't want a nutrient flush), no commercial fertilizer. The whole mix is intentionally lean.

Plants this is for

Designed for succulents and cacti:

  • Echeveria, Sedum, Crassula (jade), Sempervivum: the classic rosette succulents.
  • Haworthia, Gasteria: they prefer slightly more shade but want the same gritty drainage.
  • Aloe (vera and others): medicinal succulents, this mix prevents the rot they're prone to in heavier soils.
  • Most cacti: Mammillaria, Echinopsis, Opuntia, San Pedro, golden barrel.
  • Lithops (living stones): require fast drainage to stay alive year-round; this mix is well-suited.
  • Bonsai with high drainage needs: juniper, pine, and certain deciduous bonsai work well.
  • Caudex plants: Adenium, Pachypodium, and other swollen-stem species that need fast drainage at the base.

Not for: tropical "succulent-looking" plants like Hoya, Christmas cactus (Schlumbergera), or Easter cactus, which actually prefer humidity-retaining mixes. For those, use Molly's Aroid Mix.

Watering with gritty mix

The right rhythm: soak and dry. Water deeply, then wait until the mix is bone-dry before watering again.

  1. Wait until the top 2 to 3 inches feel completely dry. For most succulents in standard 4 to 6 inch pots, that's every 10 to 21 days indoors.
  2. Water until liquid runs clearly out the drainage holes. Don't dribble. Soak.
  3. Discard any water in the saucer. Do not let the pot sit in standing water.
  4. Wait. The plant will let you know when it's thirsty (slight wrinkling of leaves, lighter pot weight).

In winter, water roughly half as often. Most succulents go dormant or semi-dormant.

FAQ

Why is this so heavy compared to other succulent soil?

Because it's mostly minerals, not peat or coco coir. The weight is what makes it work. Light bag means light drainage, which is the opposite of what succulents need.

Can I use this for bonsai?

For tropical bonsai, no, they want a moisture-retentive aroid-style mix. For drought-tolerant bonsai (juniper, pine, certain deciduous species), yes, this mix or a 50/50 blend with finer organics works well.

Will the mix break down or stay porous over time?

Stays porous. The mineral components (pumice, lava rock, charcoal) don't decompose. The small organic fraction breaks down slowly. Most succulents in this mix can go 2 to 3 years before repotting.

Should I add fertilizer?

Sparingly. Succulents are slow growers and don't need much. A diluted (~1/4 strength) cactus-specific fertilizer once during the growing season (spring) is plenty for most species.

Packaged in a heat-sealed resealable bag. New formula released April 2026, see the formula release announcement for details on what changed.

Related care guide

Watering, light, and repotting fundamentals for succulents and cacti.

→ Read the Succulent & Cactus Care guide

Have questions? Read the Molly's Succulent Mix FAQ for detailed information on watering, repotting, and which succulents this mix works best for.

New: the complete soil guide

Not sure if you need cactus soil or succulent soil? They are the same thing. Read: Best Soil for Succulents and Cactus →

Not sure which mix your plant needs?

Take our free 60-second Soil Finder quiz → Diagnose the problem and get the exact Molly's mix and amount for your plant, plus 10% off.

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SKU: 33693672025

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Xie Xie
Grantham, US
★★★★★ 5
The wood is great.
I used to use a typical padded wrist pad, but am a heavy sweater. Upon reading another review in regards to that matter I decided to take the plunge on this rest. I have been a user of the Model O mouse from Glorious for a while and liked it so I trusted the company's reputation for taking gamers' needs into consideration. After using it for about a week and playing different types of games/working from home on it, I can say that although your sweat might pool during sweaty moments, it's easy to wipe off and doesn't seem to easily absorb into the wood. The wood itself is of a nice quality, I like the oak over the onyx for a more "real wood" look. There was no difference in comfort for me, you'd think being used to a padded wrist this shift would be "hard" on me, but no, I haven't had any problems. It's ergonomics for typing are also good as I notice my WPM and consistency be higher on multiple tests. All-in-all quite satisfied with the purchase, fits the aesthetic, feel, and ergonomics I was looking for.
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Reviewed in the United States on March 2, 2021
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C N Rosa
Los Angeles, US
★★★★★ 5
Very well made, matches width of Keychron Q6 perfectly, great for bigger hands!
This is a nicely finished slab of wood that is an EXACT match for my Keychron Q6 in both width and height. Depthwise, this is 4", so if you got larger hands (as I do), this is a bit better than the silicone Keychron version which I believe is 3.5" or so in depth. The non-stick feet are a nice feature, and the profile is wonderful to type on. Only issue with the item I received is a small nick right below the Glorious emblem on the lower right of the wrist rest - may have been an errant tool mark. However, this doesn't detract in my own opinion, from the well-designed profile and features of this wrist rest and was easily covered with a furniture marking pen. I'm still giving this item 5-stars and getting another one for the office!
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Reviewed in the United States on May 7, 2025
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Jesús Jaén
Omaha, US
★★★★★ 4
Glorious Wooden Palm Rest Durability and Stability in an Elegant Design
Color: Onyx, Size: Mouse Wrist Rest, Color: Onyx, Size: Mouse Wrist Rest
After years of using foam palm rests, I always encountered the same problem: they deformed over time, losing height, ergonomics and, consequently, their usefulness. This is especially critical when you spend between 3 and 8 hours a day at the PC for work, study or gaming, since a bad posture can increase the risk of suffering from carpal tunnel syndrome. This is where Glorious' wooden palm rests come in, a solution that eliminates deformations and offers an ideal height for both the mouse version and the TKL (Tenkeyless) version. Positive points • Solid and durable construction: Unlike foam, wood maintains its shape and provides stable support over time. • Elegant and minimalist design: Its finish gives a premium touch to any setup. • Effective non-slip base: The bottom rubbers prevent unwanted movements, providing total stability. • Easy maintenance: Although wood is slightly porous and can retain natural oils or residue from creams and perfumes, cleaning it is easy. Areas for improvement • Less softness than foam: Although still comfortable, wood sacrifices some of the cushioned feel that some prefer. A redesign with a foam strip on top could improve this. • Inconsistent finish between versions: I bought the mouse rest and the TKL at the same time, but noticed that the color tones were different (one blacker than the other). It doesn't affect functionality, but it does affect aesthetics. If you're looking for durability, stability, and a sophisticated design, this is a highly recommended palm rest, especially if you find it on sale. Although it's not as soft as the foam ones, it does its job of providing ergonomic support exceptionally well. An excellent complement for those who spend long hours at the PC and are looking for a sturdier alternative to traditional palm rests.
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Reviewed in the United States on February 5, 2025
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M. Blank
Charlottesville, US
★★★★★ 5
great mouse rest
Color: Golden Oak, Size: Mouse Wrist Rest
This works really well for for elevating your wrist, I use an apple trackpad it puts my wrist a little too high so what I did was put some rubber pads on the back of my trackpad to raise it up. It now gives the perfect height and good support I can even lean on it. It works well to the fact that it gives you very good support it's not uncomfortable and it's very easy to clean and looks very nice on my desk, because it's made out of real wood.
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Reviewed in the United States on March 13, 2022
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M P
Waukegan, US
★★★★★ 5
Great wrist rest. Smooth finish, good looks, and ideal wrist angle.
This wrist rest sets you up for pretty optimal, level height to prevent future wrist problems. I went with the nice reddish/brown color as it matches my brown wood Edifier speakers and other brown accessories very nicely. Nice matte finish that avoids showing finger prints and skin oils. The color is perfect, not too red or too brown. Keep in mind if your keyboard is angled in the front it will leave a bit of a gap, however it is unnoticeable to me. Also, make sure your arm rests of your chair can come high enough to meet the half inch or so thick wrist rest. My arm rests are a bit low for the time being so some extra pressure is put on my arm behind the wrist when resting on the chair supports.
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Reviewed in the United States on March 29, 2021

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