I got growth most won’t believe by mixing about 1/2 teaspoon of ammonium sulfate in two gallons of water and watering with that every day. There are pictures in the Kee Crisp thread:
Post 20 is March when the plants arrived. Post 32 is October. Hard to do better than that.
The plants also had a one time application of Hollytone for acid loving plants.
In October the plants were covered in fruit flowers about to bloom. That will work where they were grown in my greenhouse. I sold and moved on. No more pictures.