I bought the inexpensive 40lb bags bag of alfalfa pellets for my hostas last summer.
The gardenias were professionally installed last year and immediately the leaves began turning yellow and falling off. Was told use Ironite. Did it. But I only got a dismal 'recovery'.
This spring/summer came and the gardenias again began their poor performance. Disgusted I made a powder of the alfalfa pellets and applied a generous amount to the area, working into the soil well. I watered well with Super Thrive and watered again two days later. I left town for two weeks with instructions for additional watering if we didn't get rain.
Lush flowering gardenias greeted me on my return!
Some may want to credit the improvement to the SuperThrive, which I do love. But I had used it before with little or no improvement.
After reading alarming information about Miracle Gro, I seek alternative soil improvements.