This 2011 introduction has glossy, dark green foliage and is loaded with bright yellow flowers that bloom till frost.  it has a uniform trailing habit and is attractive to butterflies and hummingbirds alike.  Height 12-18".  Zones 8-10.

Also available:

Cuphea 'Cigar'- Long tubular red flowers that resemble cigars all season.  Highly prized for its high nectar content which attracts humminbirds.  Height 24-36".  Zones 8-10.