Rocks for cacti

luv_daisesJuly 23, 2014

Where can you buy the "little" rocks that you put in the cactus ?

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DavidL.ca

Not sure if you're talking soil amendment or decorative top dressing. Both could be found in garden center depending where you are, but your best bet is probably looking for them at farm feed store, according to most people's experience here.

    Bookmark   July 23, 2014 at 11:33PM
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mingtea(z9 Tucson)

I use pea gravel. Aside from the fact I have it all over my front and back yard, there is a landscape supply place here that lets you buy their materials by the bucket instead of the ton. Maybe you've got a place like that?

-Ming

    Bookmark   July 24, 2014 at 12:58AM
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DavidL.ca

Ming, do you use pea gravel as soil amendment or just as top dressing? The pea gravel I see available here seem big to put in potting mix.

    Bookmark   July 24, 2014 at 1:05AM
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wantonamara Z8 CenTex

I use crushed fair lane pink granite. I also use small pea gravel, small fossils, crushed glass.

    Bookmark   July 24, 2014 at 1:20AM
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cactusmcharris

Best bet? Anthill (for small plants), crumbling granite face (for larger ones), decomposing boulders (for largest plants). Also, some roofing companies and feed stores (ask there for poultry grit, making sure you don't get poultry scratch).

Yep, I'm a top dressing geek going on for more than a decade.

    Bookmark   July 24, 2014 at 1:37AM
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mingtea(z9 Tucson)

Top dress everything I can remember to fo' sho'! Especially since I'm a hose waterer.
Awesome tip on the anthills, Jeff. I'll be raiding the wash soon...
-Ming

    Bookmark   July 24, 2014 at 3:54AM
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luv_daises

I guess I am looking for the top dressing.

    Bookmark   July 24, 2014 at 10:23PM
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rina_

Then you have lot of choices...wantonemara and cactusmcharris gave great suggestions.

    Bookmark   July 24, 2014 at 11:56PM
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wantonamara Z8 CenTex

pet stores have aquarium pebbles if you want garish colors.. Go down to a stream and look around for whatever strikes your fancy.

    Bookmark   July 25, 2014 at 12:02AM
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lii_sama

I will chime in with my, perhaps, silly question: how about top dressings for Opuntia, Holiday cacti (TC, CC, EC), Donkey's tail and Stapelia? Perhaps I could use keramzit (expanded clay) as the top dressing, but is it advisable to use any kind of top dressings for them? Otherwise I am watching as the ground around the place where I keep my plants in the Summer gets littered with perlite...

Liene

    Bookmark   July 25, 2014 at 3:48AM
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wantonamara Z8 CenTex

One of the functions of top dressing is to keep the perlite from floating out of the pot. Another function is it acts to keep the soil cooler.

    Bookmark   July 25, 2014 at 7:19AM
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