Two of these I grew from seed, the tops were yellow, brown and black. I've snipped a good inch off and planted them in the ground as they looked like they were dying so hopefully Mother Earth will save them. #monkeypuzzle
You should put them outside through the day and bring them in at night, to harden them off. Then after a couple of weeks they should be OK outside, maybe in a sheltered spot for a while. Just keep an extra eye on them. If it's bad weather, treat accordingly.