By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Humic acid, fulvic acid, organic amino acid and an organic P/K booster will all help.
Some volcanic rock dust, which is a phenomenal source of trace elements, will also help, as will blood/bone meal.
After all this, it is all down to genetics, plant health, environment factors and lighting.
Regards, Organoman.
BIGLOTTOLAXER96
