I received as a Thanksgiving gift these ponderosa pines collected by my landscaper, who obtained a permit to collect, in the Flagstaff national forest. He collected using his landscaper’s knowledge and obtained most of the root ball and placed and packed each tree into a plastic container. The pot was filled with dirt up to the first internode, but the root ball is only taking up the bottom third of the container. He then used super thrive and watered for a week and dropped them off.
The question I need help with is:
Should I place them in my backyard until spring and then transfer them to a wooden box with pumice or do it now or something else?? I do not have access to a greenhouse.
The trees were collected at 7,500 feet and I live in Prescott AZ elevation is 5,000 feet with winter temperatures from an average of lows of 20 at night to highs of 50s daytime.
Thanks for your advice in advance.