Cytisus × praecox, the Warminster broom, is an artificial hybrid species of flowering plant in the family Fabaceae.

[2] Its parents are Cytisus multiflorus (the white Spanish broom) and Cytisus oromediterraneus (the Pyrenean broom).

[1] A deciduous shrub, it is available from commercial suppliers.

[2] It has a number of cultivars, including 'Allgold' and 'Warminster', which have both gained the Royal Horticultural Society's Award of Garden Merit.

[3][4] Other commercially available cultivars are 'Albus' and 'Lilac Lady'.