I am new to Tower Garden and have just planted my first seedlings in it. Do I need to thin any of the seedlings before putting them in the TG? The lettuce rock wools have several leaves growing in them. Should I have only a couple, or should I leave them all in there?
The seed package for Romaine says to thin to 1 when they are 1/2" tall.
They have been in the TG or about 1 week and haven't really grown much at all. They are maybe 1/2 inch right now.