Do you have to test ph and ppm for outdoor?

BakingcoOkiez

Active Member
I'm just curious because a friend of mine is asking for help and I'm doing indoors and I told him to check ph and ppm for great health.
 

vostok

Well-Known Member
it would be a sensible precaution

and the more so if its your first grow

often growers will fertilize the soil with organic matter

a month or so before the plant out

the more info the better?
 
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