I wish I could tell you. I'm an indoor grower so conditions are sub-optimal. This particular plant is grown on a bakers rack located by my door wall which faces southwest. I have to draw a sheer curtain across the glass from about 2:00-5:30
PM. to prevent direct sun from hitting the plants. As I write this the AC just kicked on so I know the humidity is going to be low. It does receive regular fertilization with a variety of fertilizers and I use primarily RO water. There's a small fan attached to the end of the rack to keep air moving. I do tend to keep it on the drier side.