Habit: Broadly conical, large shrub or small small tree, 2-4 (6) m tall; 2-4 m wide, juvenile trees slender, later extensive; densely branched, slow-growing.
Flowers: Eye-catching, before leaves shoot, goblet-shaped, very large, buttery yellow, fragrant, long-lasting, mid-May.
Leaves: Ovate, glossy dark green, deciduous, finely tomentose beneath.
Roots: Shallow, fleshy, sensitive to mechanical damages.
Demands: Sun to semi-shade, frost hardy, winter protection recommended.
Soil: Fresh to moist, well-drained, rich in humus, acidic to neutral, evenly moist in summer, nutritious.
Hardiness: Zone 6b