Some cuttings I start the 'normal' way: wrap in damp paper towel, bag, then move to cup in humidity bin when roots appear. But some cuttings I'm starting by just sticking them directly into the gravel growbed in my high tunnel aquaponics system (the growbed serves as a filter for a 1,000 gallon fish tank).
I put the first cutting (Hardy Chicago) into the gravel about 6 weeks ago, the rest went in about 2 weeks ago. During most of that time, the water in the system has been cold, usually around 55-60F, so growth has been really limited. Over the last few days the weather has been nice, though, so the water temp has crept up into the low 70's and the cuttings look to be off to the races. During this warm spell I've moved the 'normal' cupped cuttings from the humidity bin in the house out into the growbed alongside the others.
Here are the varieties pictured, in order:
Italian Honey
Black Greek
Panache
VdB
a dozen Green Ischias
Salce
Celeste
Conadria
Hardy Chicago - bagged/binned
Hardy Chicago - stuck in gravel from get-go
Hardy Chicago - comparing both methods
(note - all those HC's were started at the same time)
It's going to be fun watching these plants explode in new growth in the coming weeks :)