I've looked in nurseries, Home Depot, and Lowes and could not find any horticultural pumice. If you have ever found pumice, let me know where!
On the other hand, my mom brought some pumice scrubber things home from the grocery store to see if they are the right stuff. I crushed them up and they seem legitimate. The only thing I'm worried about with these is that they might have chemicals in them of some sort...
lol, no. It just says "made in china" like everything else these days. That's what makes me a little more worried... perhaps I should just try it out and see if it kills the plants. One pot without pumice, and one with it.
I really think that you can use other materials that will do the same thing, some people use ingredients because they can get them everywhere or for really cheap. I pot 90% of my orchids is pure LFS every year because I can get it really inexpensive, as where other people will go with a different mix because LFS is expensive where they live.
Have you looks for places that sell stuff like sponge rock?
Good day everyone - Sorry to dredge up such an old thread but I have been searching for horticultural pumice ever since I moved away from the western States. There you could get it cheap, and it is so much better than perlite (because it doesn't break down over time and it holds more water while draining better). Plus, the intense white of perlite I find to be visually distracting in a soil mix.
Recently my quest ended when I found a new product "Growstone"; it is man-made pumice! Pumice is just volcanic glass foam, and this stuff is made of recycled glass. They make it on the Albuquerque landfill using the methane from the landfill to fire the kilns. You really can't get more environmental than that.
The stuff feels just like pumice, and is a reddish brown color making it look nice in a soil mix too. Okay, so I don't know if it is yet available in Canada, but you can apparently get it in all 50 states, which already makes it more acquirable than pumice.
Anyhow, if you are looking for pumice it might be worth checking for this in Canada too. They make a large chunk version for hydroponics, and so stores catering to that hobby are good places to check.
I know this was a pretty glowing review, but I assure you I have no association with the company. I am just excited to have an environmentally responsible version of my pumice back to use for growing plants.
Last Edit: Dec 2, 2012 11:36:26 GMT -5 by Apoplast
Hi Drew - Awesome, thanks for posting a link for Canada! I'm glad it's available in Canada too (it would have been a little silly for me to have posted something here about a product that was entirely unavailable in Canada). There seem to be two sizes that are commonly available, a large size for hydroponics - which is probably totally unsuitable for all but the largest CP's, and a smaller size which is slightly larger than the horticultural pumice I used to get - but the smaller size is a pretty good pumice substitute.
All I could find on their website was the larger chunk stuff (link in my previous post) but I bet they have the smaller stuff as well, and if not could order it. The company selling it appears to have a location in Mississauga, ON and Langley, BC.
Good day everyone - Sorry to dredge up such an old thread but I have been searching for horticultural pumice ...
It'll cost about $CDN130 to get an 80lb bag from a Hess distributor in New England. I reckon I will order some in early summer after I get the veggies in the ground - and I free up some space. If anyone else (orchid geeks?) is interested PM me - Apoplast, this guy is in the US. Contact Hess and they can give you someone close to you. Hess are in Idaho.
Maiden: I try my best to stay in shape. Im very limited in time! 3 more weeks and im back at home!
Mar 17, 2015 19:55:40 GMT -5
Maiden: Cant wait to see if my plants are allright, or if my girlfriend need another job
Mar 17, 2015 19:58:54 GMT -5
amanitovirosa: Maiden, do you mean you will fire her because she did something wrong with your plants or that she has lost her job because she was spending too much time watching your plants and not going in to work?
Mar 22, 2015 9:01:09 GMT -5
Dennis A(cook1973): He will fire her for not turning on the lights for his Helia's !!
Mar 23, 2015 15:22:17 GMT -5
mabudon: man this lousy smarch weather
Mar 27, 2015 20:21:26 GMT -5
lloyd: It's -7C tonight (without the wind chill).
Mar 27, 2015 21:23:57 GMT -5
gerry: Was - 6 here during the daytime yesterday, not sure about night, sure felt much colder thats for sure
Mar 28, 2015 6:04:01 GMT -5
mabudon: oddly tho, living on the edge of the escarpment like I do, even -5 and sunny is gorgeous compared to what we endured the past few months
Mar 28, 2015 8:54:48 GMT -5
gerry: Was reading a list of helpful hints on plant growing. Hint #9. DO not put them in a blender. rofl
Mar 28, 2015 21:25:23 GMT -5
mabudon: wish you would have posted that sooner, man that would have saved me some grief
Mar 29, 2015 11:47:02 GMT -5
Dennis A(cook1973): Don't let Beta fish eat the roots I learned that the hard way lol !!
Mar 29, 2015 12:11:53 GMT -5
hal: Sarracenia smoothies are a staple part of my diet.
Mar 29, 2015 14:11:52 GMT -5
gerry: Cant sell em in the health food stores though, The bug ppm is too high.
Mar 29, 2015 14:36:27 GMT -5
amanitovirosa: mabudon, what a piss!!! Fell off my chair laughing!!!
Mar 29, 2015 15:14:31 GMT -5
gerry: The look you get when asking the cashier about growing bird seed into birds is priceless
Mar 29, 2015 19:00:11 GMT -5
lloyd: How else do you clean your plants?
Mar 29, 2015 19:00:49 GMT -5
Dennis A(cook1973): I clean the VFT's that bite me with bleach..hope they don't become immune lol !!
Mar 30, 2015 9:03:49 GMT -5
will20013: lol what?!
Mar 30, 2015 20:18:57 GMT -5
gerry: Shhhh just let it happen, this is the part of the forum where we gets crazy!
Mar 30, 2015 20:54:44 GMT -5