It is in flower from July to August. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees. 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 can grow in semi-shade (light woodland) or no shade. It requires dry or moist soil.