Q.Slow Growing Deciduous Bush
Live in NE, New Hampshire, Zone 5. Thinking of buying a small, mini bush to place in a large outdoor container that would be slow growing and able to stay outside year round for my front entry way. Any ideas? I am an avid gardner with large perennial gardens.

Certified GKH Gardening Expert
You have quite the selection of choices, here! As long as you choose any small-stature shrub that is less than 12 feet tall, and hardy down to zone 4 (you really want to ensure that your shrub can remain hardy when it is in container, so you choose for a zone lower in hardiness.) you can keep it in container without much fuss.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-5/planting-zone-5-shrubs.htm
https://www.gardeningknowhow.com/special/containers/evergreens-for-containers.htm
https://www.gardeningknowhow.com/ornamental/shrubs/butterfly-bush/butterfly-bush-container-care.htm
https://www.gardeningknowhow.com/ornamental/shrubs/rose-of-sharon/rose-of-sharon-winter-care.htm
https://www.gardeningknowhow.com/ornamental/shrubs/boxwood/container-grown-boxwoods.htm
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azalea-plants-in-pots.htm