I have a tall terracotta pot about 2 foot tall and about 1 foot wide in a sunny sheltered corner between the house and the fence. I'd like to plant something that will grow tall, up to for or 5 or 6 foot tall from the top of the pot, tall but not too bushy sideways. I was thinking about a willowy sort of thing or something with blossom in the spring, or something colourful like an Acer. I'm happy to keep pruning if necessary. There is a Golden Celebration rose nearby, so pink, red, orange or white rather than blue or purple in colour. I'm open to ideas as I don't know much about different types of plants.