I could never find it at Lowes or HD, but I did find some at a tractor supply store, got 2 50# bags, should get me by fire a few dozen years..good luck..
Thanks for all the replies! I know the best way it to add it and then mix it in the soil and then plant, but i have some plants already in their final container. Can you take the 2 tbs per gallon recs and mix it in the soil at the top of the container?
I know this isn't the most popular answer, but you can use the epsoma lime. It is mixed with the little clay balls pelletized I believe. I now have the powdered, and have had more issues with it for some reason. I just used the mushroom compost from Lowe's, and the epsoma lime. Never had a problem, and the healthiest plants I ever grew. I had a mixed garden of organics, and chem's also. Powdered I'd still feel the popular answer, but the pelletized fine.
I also bought a coffee grinder for grinding up such things, and also did a light topdressing every once in awhile. Be well...D