Banana Purple Punch Outdoor grow

I added some hazel nut shells as a mulch and so far I think I'll let her grow as she is without LST. As I noticed - not sure if it's true or not - that outdoor LST stunned 2 of my plants. Whereas a really weak at the beginning plant - without leaves up to 3 nodes - right now outgrew both champs. I transplanted BPP weird enough, so now she leans to the side so much. That's because I am used to LST and like to have some room for a plant to lay on the ground. But this time I holding my hands to not to do any LST and let her grow naturally. Day 26 - I sprayed fungicide on her, because many times ended up with botrytis