Zeolite?

Pudge 2bMay 4, 2005

While shopping yesterday I came across 10 kg bags of Zeolite for $6 so I picked up a bag on impulse (and knowing nothing about it). My initial thought was that I would use it as a mulch in troughs (which I don't have just yet, but have plans to try making some hypertufa ones soon - bought a giant sized bag of vermiculite as well).

After I got home I started reading about it. Am I correct in understanding that Zeolite actually holds moisture? Will it be better served as a soil additive for the troughs, rather than a mulch? If as a soil additive, how much would one use, say for a wheelbarrow full of soil mix?

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alpiner(Albertaz3)

Zeolite is mostly a marketing item. Nothing wrong with it but I would buy 'sharp sand' if it's available at a cheaper price. I've been given bags of zeolite and see no difference from my plants grown in the same parts mixture of sharp sand.

This is personal preference but I don't like the look of zeolite in my troughs. It's a bit too artificial looking.

As stated I don't have any problems with zeolite. I just don't find any benefits over sand.

    Bookmark   May 6, 2005 at 10:18PM
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Eccly

Zeolite as a potting Media

Looks like an old threat here. Quickly, blend in about 15% into soil or potting media by weight. Natural zeolite holds between 20 -35% moisture by weight.
Has a high cation exchange capacity or in other words a high nutrient holding capacity which it will exchange back to plants. The benefit here is as a holder of fertiliser and reduces nutrient leaching.
It is not a fertiliser and should be considered empty of nutrient. Some sources of natural zeolite are hard and can substitute for sand and other a soft and chalky where you will still need sand for texture. Colours range from white, pale salmon pink and pale green depending on original ore deposit.

    Bookmark   April 3, 2013 at 9:55PM
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Campanula UK Z8

hmmmm, there are some interesting reports using zeolite in phyto-remediation projects - still in infancy but also using it to counteract syndromes such as rose replant sickness. A fascinating substance.

    Bookmark   April 5, 2013 at 5:46PM
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