C. siliquastrum is a bushy, deciduous small tree. Leaves to 10cm in width, broadly heart-shaped. Flowers rosy-pink, pea-shaped, in clusters on the older wood, opening before or with the leaves. Fruit a conspicuous flattened purplish pod to 12cm in length
Earth laughs in flowers 
I think there’s a Judas tree in the city centre, I came across it in the dark last year, I need to go back in a month or two and check!