dl290485
Well-Known Member
Not usually used is not the same as not able to be used. I mean around here rice hulls and pumice aren't used for gardening either.
One the bag it does say it can be used for hydroponics- in place of expanded clay balls i'm supposing.
I found 1 website so far with info about it being used in the garden http://jetta17.hubpages.com/hub/Lava-Rocks-Soils-Best-Organic-Admendment
"Incorporating lava rocks into your garden's soil is easy. When mixing soil components add enough lava rock to make up 20-25% of the total soil mix. Lava rock comes in various sizes but the best size for the garden is marble-sized rocks. Perlite is being replaced in garden soils by lava rock because of its added benefits. Layers of lava rock at the bottom of containers are recommended to increase soil drainage"
It also says there that it won't break down straight away but will gradually over time and will release minerals in the process. So I guess i've found the answer to my own question sort of.
I think I will press ahead with it and hope it works out well.
One the bag it does say it can be used for hydroponics- in place of expanded clay balls i'm supposing.
I found 1 website so far with info about it being used in the garden http://jetta17.hubpages.com/hub/Lava-Rocks-Soils-Best-Organic-Admendment
"Incorporating lava rocks into your garden's soil is easy. When mixing soil components add enough lava rock to make up 20-25% of the total soil mix. Lava rock comes in various sizes but the best size for the garden is marble-sized rocks. Perlite is being replaced in garden soils by lava rock because of its added benefits. Layers of lava rock at the bottom of containers are recommended to increase soil drainage"
It also says there that it won't break down straight away but will gradually over time and will release minerals in the process. So I guess i've found the answer to my own question sort of.
I think I will press ahead with it and hope it works out well.