Small tree or shrub to anchor a bed
I bought my first house and I'm starting gardens completely from scratch. Other than several mature oaks and apple trees, there's nothing in my yard except grass.
I'd like to "anchor" one of my new beds with a very small tree or shrub - preferably something that flowers at some point. Does anyone have a suggestion for something small that won't compete too much with the perennials? A friend suggested a Japanese tree lilac, but I'd like something a little smaller than 20'. Plus, they don't seem to sucker, but I don't know how much the roots will compete.
I'm still in zone 4 in Duluth and this bed will get a fair amount of sun.