First let me state that I don't know a thing about growing Amaryllis in pots. Let me state that secondly, I don't know much about growing them outside in the garden, they just pretty much take care of themselves here. That being said, I do grow some from seed and they always start out very tiny of course. So I would definitely try and save the bulb and let the leaves grow. If the bulb and roots are good, I would think with warmer weather the leaves will take off and grow pretty fast.Good luck with them.
I drove around the neighborhood today and picked up a beautiful truck load of shredded grass, leaves and pine straw, and I saw so many Amaryllis that had been zapped by the one cold night. If they had any type of protection at all, they seemed to have survived really well. Note for next time to have some type of covers ready if they have already bloomed when freezing temps come.
