How much epsom

My current mix: Growth phase: 1.5 g Epsom salt/10 l rainwater Flowering phase: 2 g Epsom salt/10 l rainwater It's better to prepare a stock solution. Growth phase: dissolve 15 g Epsom salt in 100 ml water. Flowering phase: dissolve 20 g Epsom salt in 100 ml water. Add 10 ml of this to each watering can. You need to convert it to gallons.

Try 2 tablespoons sprinkled around the plant and watered in. Results may take 10-14 days to show. 2 doses over 2 weeks should help.

it's not as simple as that.. .how much are you providing in other forms? Also, it's not something you add once in a while, it's something that needs to be provided in a consistent way throughout the grow. it's much easier to give a specific answer for a soilless/hydro context and more difficult to be specific in regard to soil growing. soilless/hydro context ~75 ppm is probably good enough, though there are factors that could rquire more or less.. nutrients can impede each other and there are numerous ratios that can function fairly well, even if they are not all equal to each other in effect. That's a cumulative total, not just cherry-picking 1 ingredient. soil you'll have to look at how much you are providing in your nutes and make guess about your soil amendments. start with a gram per gallon and see how that goes... this assumes some Mg is contributed by something else and not 100% epsom