Plants that can withstand cool weather
I am going to be experimenting with some outdoor tub "ponds" this summer. I would like to get a early jump on them and start to set them up in about two weeks but the temps here are a little cool( about upper 40s-60s) right now. Are there any plants that can withstand these temps plus warmer ones? I would like to have the tubs cycled and "aged" before adding any fish. I will probably add heaters in case the summer nights get cool but for now they will be unheated.
P.S. If this should be in the pond section feel free to move it.