||It is hardy to zone 10 and is frost tender. It is in flower from August to September, and the seeds ripen from October to November. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects. The plant is self-fertile.
The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires moist soil.