每日吃瓜

Hi all,
I often find wild seedlings or saplings in my yard and when I find chestnut (Castanea) or hickory (Carya) I mark the stem and pot them up in late winter or early spring. I try not to damage the roots at that point but the tap root is often hard to get intact, especially for the hickory. As they grow, though, I want to be able to reduce the pot size, especially the depth.
I am wondering how slowly I must progress with the effort. Any guidance and guidelines as to how much root material can be removed any given year would be greatly appreciated.
Thanks,
T

The first thing to do when digging up is to remove the tap root, then you will be able to have a shallower pot. As for reducing the pot size you have to get the tree to grow first before reducing the pot size. Usually in the ground for 5 to 10 years.