Jack's: Please point me in the right direction

I've been using the Lucas formula with Maxibloom with added CalMag and have gotten pretty good results. I'm almost out of Maxibloom and need to order more nutrients so I wanted to learn more about Jack's.

I'm all about cost savings and efficiency and from what I've heard Jack's is the best option for buying in bulk and being set up nutrient wise. Looking around it looks like they offer a number of different products and I was wondering what the standard is for MJ and how to mix it up. I'd also be curious to know the best place to order as after looking at old threads some are over 10 years old so I was wondering if someone could point me in the right direction.

Thank you!

For ordering check out their website directly I find it most convenient unless you have a local supplier.


Green Genes Gardens has an informative video regarding Jacks which can give you a better rundown.



The Jacks website also has a bunch of great information.

I personally use there basic Part A - Part B - Part C (Epsom Salts) formula at 1/4 to 1/2 strength. In flower I will push slightly higher concentrations but not much. I tend to gradually adjust the ratio of Part A to Part B towards the end of flower. I also find myself feeding slightly higher ratios of Part C at times.

Their full strength formula is 3.6 - 2.4 - 1.2 grams/gallon.

A 25lbs bag is 60$

They do have other products like a flower specific formula, a seedling formula, etc but I have not tried those products and find their basic line effective.