Limestone Powder

(2 customer reviews)


Calcium is critical to the health of your plant, Limestone Powder adds diversity to your calcium sources, balancing pH and supplementing calcium.

Not Avail in California


Product form:

Dry powder, water soluble

NPK analysis:


Primary function/use:

Balancing pH (more alkaline) and supplementing calcium.

Other product highlights:

98 percent calcium carbonate. This product adds diversity to your calcium sources.

Product designation:


Well suited for:

Any indoor or outdoor gardening environment.

When and where to use:

Ideal for all stages of plant development (grow and bloom).

For hydroponics:

Mix one (1) tbs. with one (1) gallon of water.

For soil and soil-less:

Mix one (1) tbs. with one (1) gallon of water.

Foliar spray:

Mix one (1) tbs. with one (1) gallon of water.


Ensure bag is properly sealed and stored in cool, dry, dark place.

Additional information

Weight N/A

2 reviews for Limestone Powder

  1. Sandra

    Awesome product and freshness! I use to make natural toothpaste to aid in tooth remineralization. Thank you Kelp4Less!

  2. Grant

    Kelp4Less is affordable and extremely helpful!

    A customer of mine inquired on similar products (comparing what we provided and Kelp4Less). After getting information from Brody and his brother within minutes, I was able to direct our customer to them with full confidence that their product was right for them! Their calcium is snail-industry approved!

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