So I recently bought an echinacea plant to add to my small medicinal balcony garden, but I'm not sure if it's safe to use to make a tincture. The container from Home Depot (I didn't have time to go to the real nursery) said its not intended for neither human nor animal consumption. It's the echinacea purpurea variety (coneflower 'pow wow'.
It should be fine! As long as you didn't use anything toxic in the fertilizer/soil it should make a fine tincture, it might not be as potent medicinally if it's not Echinacea purpurea, or Echinacea angustifolia. However, most Echinacea still possesses medicinal use and antiviral properties.
My main concern would be what might have been sprayed on the plant by the wholesale grower before it went to Home Depot. I know they've taken a lot of heat for selling flowers that are marketed as "great for bees" treated with neo-nics, which are decidedly *not* great for bees. I wouldn't want to tincture anything that has been sprayed. If you've had the plant long enough that it's pretty much all new growth at this point, it's probably fine, but I personally would still feel a little nervous. :/