One of my favorite GardenWeb threads is “I’m Lazy– What can you root in plain old water???”. Did you know that pricey bunch of Italian basil rotting in your fridge roots easily in water? No? Well, plunk some of those stems in water and shout, “Pesto!”
Here’s what else lazy rooters are rooting in plain old agua:
sweet potato vine
There’s some discussion about “water roots” making it in soil, and one suggestion was to transplant when the roots are “an inch to and inch and a quarter long” and haven’t yet differentiated into water roots and can still become soil roots. Bears experimentation, I’d say! If I have a chance, I’ll check my plant propagation books and see what they say. I’ve had great luck rooting Persian Shield in water and growing it in the garden and I paid absolutely no attention to root length. Still, I’d like to explore further.