Need advice on protea seedlings
I planted some protea lepidocarpodron seeds this spring and--somewhat to my surprise--all eight of them sprouted. (I had them in our cold room until they came up, then put them out on the porch to help keep them cool.) They have been a little slow in getting out of their seed cases, but a couple are out now, and it looks as if the rest will make it.
I've read that, because proteas don't like their roots disturbed, they should be transplanted right away. Does that mean as soon as they are up, or after they've developed additional leaves? Also, will they do okay in pots that are brought indoors over the winter--as they definitely aren't hardy here in zone 5?
As I've never grown these before, any additional advice you can give me would be appreciated. I did read somewhere that they shouldn't receive any chemical fertilizer.