Cercis siliquastrum ‘Alba’ is renowned for its beautiful and abundant display of pea-shaped, white flowers that bloom in the spring. In the autumn season, its leaves turn a lovely shade of yellow. Cercis siliquastrum is deciduous and native to Southern Europe and Western Asia. Learn more about Cercis siliquastrum. Cercis siliquastrum ‘Alba’ originated as a natural form of Cercis siliquastrum, originally growing in the Mediterranean area.