Hardy trees and shrubs

Koelreuteria paniculata (Sapindaceae)
Tree with elegant divided leaves, beautiful inflorescences and unusual swollen ornamental fruits when the leaves fall. Hardy. Northern...

Paeonia ostii (Paeoniaceae)
~~Very rare chinese tree peony. Leaves, glaucous, irregularly divided. Flowers white, very large, about 18 cm when completely opened. Every...