CAUTION: MAY HAVE INVASIVE TENDENCIES. Laburnum x watereri, or golden chain tree, is a hybrid, non-native species from Europe, thriving in full sun to partial shade, with well-drained soil that is alkaline soil tolerant. This tree species is not recommended to plant as the tree produces chemical compounds that are highly toxic, especially the fruit and can cause symptoms such as vomiting, drowsiness, weakness, sweating, pallor, and headaches. Although poisonous, this hybrid is known for its striking yellow flowers, which fall in spring and can create a blanket of petals on the ground. Better alternatives to plant include Celtis occidentalis, Ostrya virginiana, Cercis canadensis or Carpinus caroliniana.