I've grown a few sunflowers this year and they have done really well. I love the height that they add to the border, and that they don't have a big bulky top like you get with a bushy shrub or small tree; they are growing in front of some banking covered in ivy so I don't need the greenery up there. I like that they don't cast too much shade on the bed underneath.
Is there anything I could plant that would give a similar effect that isn't an annual? I don't mind starting small and waiting for something to grow, but ideally I would like year-round interest.
Fully appreciate I might be asking too much! Thanks in advance for any suggestions.