As is sadly familiar nowadays, The Peters Corporation was taken over by a conglomerate, which was in turn taken over by an even larger one.
The first takeover resulted in changes to the Peters line of products, and the second takeover resulted in Peters products being cut altogether.
Fortunately, J.R. Peters is now producing the plant food you have known & loved under the name "Jack's Classic" If you used Peters Plant Food in the past,
this is the way to go.
A plant food formulated to encourage growth of roots flowers & fruit. 15-30-15. Good for feeding of most bonsai, houseplants, garden plants & vegetables.