Humidity,Humidity,Humidity! I can normally get a tray of 32 cutting's,to root in 8 to 10 days.You gotta a bit of over kill on what you use to root.I use 1/4 strength 10-60-10,super bloom.This is a trade secret.put it in a spray bottle and spray the leaves only,don't drench the plant.the rooting hormone can be leached off the stem before it takes root.that's food in the spray bottle.Your feeding them.no need to water them or give any nutes till they get roots.Hope it helped ya!

Ga Grown!