Quote Originally Posted by Halloamey View Post
High K does affect bloom quality and number.
Thanks, Amey - I assume you mean negatively? Also, most of my orchids are either in, or going in, to S/H strictly with clay aggregate - what balance and strength of fertilizer/nutrients would you suggest? What do you think of adding superthrive to their feeding schedule? This is my first foray into semi-hydro, but so far it's going well, and I like the concept of not being able to overwater the plants.