I live in Riverside, California -- mid-way between Los Angeles and Palm Springs -- where the summer temperatures often exceed 100 degrees.

In the front of my house, I have a 30' by 20' garden containing about a dozen roses and other shrubs.

Years ago, I planted gazanias as a groundcover but they now unattractively thin, lanking and gangly.

I'd like to replace the gazanias with an attractive groundcover that flowers more-or-less continuously.

What are good candidates?