Gertens is the real deal. I go every year for my new plants and plant supplies. This fertilizer will feed your plants and keep them green and growing flowers. I also recommend their potting soil and mulch. And did you know that even if this fertilizer doesn't help and your plant dies, you can bring back the dead part for a refund!!?? WOW! This applies to Gertens in store only, not if you buy this fertilizer somewhere else.