Q.Can I Use A River Birch Tree In A Container
Hi there! I’m in zone 7b (New York City), and I have a paved 16′ x 17′ roof terrace, west facing. It’s fairly sheltered, but can get a bit windy. I’d like to add a multi-trunk tree with smallish leaves, that grows fairly slender, for some architectural interest. A photo of the terrace from a previous owner shows what looks like a tall River Birch – would this be a suitable tree, or is there something that would be better?

Certified GKH Gardening Expert
River birch is a good container tree. Here is info that should help:
https://www.gardeningknowhow.com/special/urban/creating-your-own-rooftop-garden.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/growing-trees-in-containers.htm