Evergreens/conifers in containers in winter, Al and others?
Hi everyone. I recently bought some urn style pots for our front porch that I would like to sink some potted evergreens into over the winter. Here are some specs of the area. It's a brick walkway underneath an overhanging porch. It's an eastern exposure but doesn't get a lot of sun due to a three story house across the road from us. I was planning on having these trees eventually planted in gritty mix. I would like to practice root pruning in order to keep these trees year after year. I'm assuming this can be done. Here are my questions.
What evergreens would do good in my zone in containers? I would like something with more height than width that I can maintain around 4-6 feet
Does the size of the containers they are planted in make a difference?
Do evergreens need sunlight when the soil is frozen? In the spring and summer I would move them to fuller sun in my back garden.
A landscaping friend of mine suggested thuja plicata. I found some at a local nursery but they were already 7-8 feet tall. I was hoping for something shorter and more dwarfing.
Sorry for the lengthy post. I thank all of you folks for your help in advance!