| Sshide, I'm not sure if it's available at the Big Box stores. I get mine from a local Worm's Way, don't know if there's a Worm's Way near you, but it is a small national chain selling supplies for indoor growers and wine makers.
You can also get Physan 20 from charley's greenhouse, and various orchid vendors like Oak Hill. You have to pay shipping then, tho. |