I'll just stick with the growers blend for now it's about 7.99 for 50 lb. I do love the Mir Grow Pot Mix the kind that feeds for 6 months when it goes on sale I can get 64 quarts for the price of 32 from Lowes, not sure about HD.
How big are the bags that are 4 for 10.00? does it feed for 3 month or 6?