I raised these questions with Jonas, who had some helpful input but he also suggested I post here for other ideas. The topic is some seedlings that were planted over last winter and germinated in the spring and the best way to get them through their first winter above ground. I’m located in the Norther Virgnia suburbs of DC - which straddles zones 7a and 6b.
So first are some Japanese Black Pine seedlings. They’ve been out of the flats and in the recommended 4" pots since late spring - I’ve attached a picture of two. The question is, what do you recommend for overwintering them in terms of shelter, temperature range, etc? I know the parameters for a mature JBP with a substantial root system, but these guys still look a bit fragile.
Second, if you happen to know, the same question applies to some Zelkova serrata seedlings that germinated around the same time and are in 4" pots of their own. Thanks.