Can you plant hollies, spruce & euonomous in their pots directly into the ground for the winter? if your not sure of the placement and will replant in spring. Or is it best to remove the pots and plant in the ground as usual ? Or is it to late for them to adjust, before winter freeze? Thank you in advance!
Presumably you have recently purchased these plants and they are still in their pots because you are not sure where to plant them in your garden. Autumn is a good time of year to plant shrubs provided its done before the first frost, thus allowing roots to become established. Since our winters are very cold it’s vital that your plants go in the ground, as soon as possible, before the end of October. It would be preferable if you decide now where you want the plants to go in your garden. This will save having to dig them up again in the spring. Dig a hole twice the width of the root mass. The depth must be sufficient to allow the final soil level to be the same as it was in the pot. Remove plants from the containers and place the root ball in the hole. Backfill with soil and firm in gently. Water thoroughly and apply a layer of mulch around the base of the plant to protect roots from the cold of winter.
If you cannot decide where you want the plants to permanently reside right now then transplant in the spring while the plants are still dormant so as not to disturb the roots.