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Description
pumice stone for succulents Pumice stone (2–6mm) – Washed – Improve Soil DrainagePumice Stone (26mm) is a lightweight, natural volcanic rock that enhances soil structure by improving drainage, aeration, and long term root health. Its porous surface retains moisture while allowing excess water to drain freely, making it especially effective in preventing overwatering in pots and planters. This pre washed pumice is ready to use and ideal for succulents, cacti, bonsai trees, and general houseplants. Unlike perlite, it wont float to
Pumice Stone (2–6mm) is a lightweight, natural volcanic rock that enhances soil structure by improving drainage, aeration, and long-term root health. Its porous surface retains moisture while allowing excess water to drain freely, making it especially effective in preventing overwatering in pots and planters.
This pre-washed pumice is ready to use and ideal for succulents, cacti, bonsai trees, and general houseplants. Unlike perlite, it won’t float to the surface or break down — making it a reliable, long-lasting amendment for your soil mixes.
Key Benefits
- Improves Drainage: Prevents soggy roots and water retention in pots
- Boosts Aeration: Keeps soil loose and oxygen-rich
- Heavier Than Perlite: Stays in place and doesn’t float
- Long-Lasting: Won’t degrade, compact, or break down over time
- Pre-Washed & Clean: No dust, no rinsing needed — ready to mix and use
How to Use
Succulent & Cactus Mix
- Mix 1 part pumice with 2 parts cactus or succulent soil
- Ideal for aloe, echeveria, jade, and other dry-climate plants
General Houseplants
- Add 1 part pumice to 3–4 parts potting soil
- Enhances root aeration and prevents compaction in common indoor plants
Top Dressing for Pots
- Spread a 1 cm layer over the soil surface
- Reduces fungal gnats, slows surface drying, and keeps pots looking clean
Raised Beds & Large Containers
- Mix pumice into compacted or clay-rich soil at 20–30% by volume
- Improves water flow and soil texture for vegetables and perennials
📦 Product Specifications
- Size: 2–6mm granules
- Material: 100% natural volcanic pumice
- Finish: Pre-washed and dust-free
Frequently Asked Questions
Is 2–6mm pumice the right size for succulents and bonsai?
Yes. This size provides the right balance of moisture retention and drainage, making it ideal for succulents, cacti, bonsai, and indoor plants.
Can I use pumice alone as a growing medium?
Not recommended. Pumice has no nutrients. It should be mixed with organic material like compost or potting soil for best results.
Will this pumice break down over time?
No — pumice is a volcanic mineral and stays stable in soil permanently. It doesn’t compact or degrade.
Does this pumice float like perlite?
No. It’s heavier and stays evenly distributed in soil, which helps maintain consistent root-zone conditions.
Do I need to rinse this pumice before use?
No. This pumice is pre-washed, dust-free, and ready to use straight out of the bag.
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4.1 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 4
Eyes Wide Open (with a few omissions)
Format: Audiobook
Thought provoking and great insights but with a few material omissions.
As others have noted this is an extremely thought provoking book. Perhaps the most disturbing is the discussion of war gaming a war with China and in most every Chinese initiated war China wins. A close runner-up was the lack of widespread commitment of other senate members to be as fully informed as possible on the military side of military affairs including budgets for specific projects.
It's hard to document the claim that two issues were serious omissions but I think there were.
There are seemingly minor details that are important Robert McNamara worked for Ford not GM. This is important for decisions at Ford by McNamara's accolates took Ford down to one of its smallest market share of the postwar years. McNamara gave Ford the Falcon , his successors brought out the Mustang. His arrogance cost billions and thousands of lives.
McCain recognized the political folly of the initial "leased" Boeing Replacement Tanker Program but that is not discussed. Neither is the continuing debacle of the program, felony convictions/pleas of top Boeing execs and the Pentagon's civilian chief of procurement all associated with the ill-fated tanker program. Declared a near emergency need at the turn of the century, twenty later the tankers can not perform the mission and tens of billions over budget.
To put the Tanker Program debacle in perspective, In July 1962 the US achieved its first orbital space flight and its first Moon landing 7 years later. In contrast the replacement tanker program has been in process Boeing was awarded the contract in 2002 , 19 years later and the tankers are not fully operational. Along the way both Boeing and a top civilian dod official did some hard time on felony corruption convictions/pleas.
The author notes that in the event of an outbreak of war between the US and China the US ships must get far offshore to have even a chance of survival, well beyond the range of existing carrier based aircraft to attack Chinese forces. The lack of tankers, short range attack aircraft and light loads prevents the Navy from going deep inland.
Part of the problem is that the Navy was induced to scrap the long range, extremely deadly F-14B and F-14X and replace them with the slower, shorter range , less carrying capacity F-18s (also made by Boeing) . The Navy had available at the time the F-14X upgrade program which would have converted the F-14 to an even more deadly fighter / bomber and equipped them with a follow-on to the Phoenix missiles, so badly needed to defend the fleet against airborne launched cruise missiles. In addition there were further upgrades in the works to give the Phoenix missiles extremely valuable capabilities. A further indication of the suspicious pattern is that DOD required that all F-14 tooling and parts be destroyed. The claim was made that the F-14s were maintenance hogs. Partly true but largely fixed with the F-14X digital conversion and new engines. While the maintenance hours per flight hour were problematical, when looked at in the big picture they were a rounding error in the 6,000 or so sailors in the Battle Group working 10-15 hour days and the thousands onshore supporting the effort.
Does this matter, well yesterday the Chinese ran a practice attack on a US carrier as about 15 aircraft approached within 250 nautical miles of the carrier. Most certainly within range to launch enough hypersonic cruise missiles to virtually assure the carrier would be taken out of action or sent to the bottom of the ocean. As the author notes today's strategy requires that the carriers flee the area and standoff about 1,000 miles. Faster, much longer range F-14x aircraft with the next generation Phoenix would significantly reduce this threat. They would also do the same against large Russian aircraft carrying many cruise missiles.
The F-35s will help overcome this deficiency but until they are fully operational and our Naval tanker capabilities redeveloped US capabilities are seriously compromised.
The author makes many great observations regarding deficiencies in procurement management, in the Pentagon , Congress and White House.
Examples discussed include the Army's failed attempt to acquire a new pistol. The 500 page request for proposals and flawed competition would be a joke were in not for the fact that the taxpayers precious dollars were wasted in the failed effort.
An illustration of how perverted the situation has become was illustrated today with a note the the US Air Force had issued an RFP for a "modesty curtain" to be installed on our ancient B-52's because there were now female personnel flying missions. This is a need that should be solvable by a few individuals over a bottle of wine who would probably come up with better ideas, reviewed by an engineer on Monday and perhaps fabricated in one of the base shops.
As others have noted it was USAF Col John Boyd who revolutionized the air to air combat, was shunned by top Brass while at the Pentagon and left to his own devices prepared his famous day long lecture on Winning and Loosing Wars that in turn helped rewrite the USMC land battle doctrine. Most all of this work done out of sight of his "leaders" .
The author might have also given credit to leaders like Admiral Tom Connolly who sacrificed his career to save Naval aviation from the terminally flawed F-111B as an example of the character and courage needed in the Pentagon, Congress and the White House today and into the future.
The author's descriptions of the challenges posed by an aggressive and expansive China should be taken to heart by every American. Unless we stop treating military procurement as a Chicago like spoils system and manage both what we buy and what we pay for it we are inviting Chinese military challenges and placing an even greater financial millstone around the necks of American taxpayers and their future generations.
Overall , not perfect but a very important must read
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Reviewed in the United States on January 30, 2021
★★★★★ 5
Add this to every DoD Reading List!
Format: Kindle
There were so many great excerpts throughout the book that my highlights filled 16 pages in MS Word. This is a must read for all Pentagon personnel, those in operational commands, the acquisition community, and defense industry. Chris' insights as McCain's advisor were invaluable to understand the nuances and competing incentives of the DoD, industry, and Congressional perspectives.
"The problem is that America is playing a losing game. Over many decades we have built our military around small numbers of large, expensive, exquisite, heavily manned, and hard to replace platforms that struggle to close the kill chain as one battle network. China, meanwhile, has built large numbers of multi million dollar weapons to find and attack America’s small numbers of exponentially more expensive military platforms."
"It requires a sweeping redesign of the American military: from a military built around small numbers of large, expensive, exquisite, heavily manned, and hard to replace platforms to a military built around large numbers of smaller, lower cost, expendable, and highly autonomous machines."
"New technologies alone will not save us. We need new thinking — an ambitious effort to reimagine the ends, ways, and means of US military power, as well as the role of our allies in this effort — to succeed in a future world where America’s military superiority will likely erode further if China’s military technological development continues."
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Reviewed in the United States on May 9, 2020
★★★★★ 5
The Real Arms Race
Format: Kindle
I am a life-long Democrat, supposed to bristle at the very idea of military spending. Brose's book convinced me the problem is not how much we spend, but what we're spending it on. "Kill chain" is military-speak for the three phases of combat -- figuring out what's going on, deciding what to do about it, and taking effective action. Brose spells out how technology changed all three phases while the Defense Department and its minders in Congress weren't paying attention. The result has been to significantly undermine our military preparedness and, more importantly, the ultimate goal of deterrence. For all the money we're spending, Brose shows how it's mostly on the wrong things, i.e., large, expensive platforms that are only incremental improvements over prior systems designed for different times. He shows how the military-industrial complex, abetted by a Congress invested in the status quo, is arming our military with technology inferior to what you'd find in a modern automobile. The development of the Internet may have been kick-started by the defense department back in the 1960s, but the information revolution that followed largely left the U.S. military behind. Meanwhile, potential adversaries are compensating for relatively lower defense budgets by exploiting emerging technologies that could change the character of war, raising multiple ethical, geo-political, and governance issues. The Kill Chain is compelling, scary, and must-reading for our political leaders and all intelligent voters.
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Reviewed in the United States on May 28, 2020
★★★★★ 5
Well written and thought-out approach to change DoD acquisition
Format: Hardcover
I'm a Navy acquisition manager and former Navy officer. I very strongly recommend this book as required reading for Pentagon (especially flag officers and SESs), congressional staffs, defense contractors and those who would be defense contractors, Silicon Valley companies, and everyone who cares about the future of the United States. The author expertly characterizes the current world situation and the issues with DoD acquisition practices. He is not brutal about it, but fair. He explains the background and history behind how we got to where we are, and identifies a path forward. I believe that following the approach recommended is very hard, but very worth while. The author worked for Senator McCain for almost ten years, and it is clear that this book benefits from his experience.
My only gripe (and it is a minor one) is that very occasionally the author allows his feelings about Trump to manifest in a negative way. This is often justified, but it shouldn't be so one-sided. Nevertheless, this book is must-read, and deserves five stars.
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Reviewed in the United States on January 2, 2021
★★★★★ 4
Very Educational
Format: Paperback
I enjoyed the book. I wish the average American would take more of an interest in these kinds of issues facing the U S in the China sea region of the world.
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Reviewed in the United States on February 7, 2024