How do commercial growers grow their leaves so big?
Hey guys, I've been taking care of a phalaenopsis orchid for about a year now, and it seems happy. I water when the roots are dry, and it's been growing under some LED lights for 14 hours/day.
However, I've noticed that its new leaves are only 2/3 the size of its previous ones. How do commercial growers get their orchids to grow such large leaves? Is it the temperature? Fertilizer? Light?