A very free-flowering plant, it has one of the longest flowering periods of any species in this genus. If the plant is cut back as the flowers fade, it will usually produce a second flush of flowers later in the season.
Prefers a moist but well-drained rich sandy loam and a neutral or alkaline soil in a sunny position though it also tolerates partial shade. A very easy species to grow, it will tolerate almost any soil or situation though it prefers the fullest amount of sun. Plants grow well on a sunny wall so long as the roots have soil to grow into.