Plant Magic Oldtimer Organic Magnesium
Oldtimer Magnesium gets to work fast giving a boost of Magnesium, quickly releasing it to the plant.
Old Timer Organic Magnesium prevents and rapidly cures Magnesium deficiencies.
When used as a preventative measure it also improves the effectiveness of your PK Booster by helping the plants to take up the potassium and phosphorous and aids the production of chlorophyll.