Linum catharticum is a ANNUAL growing to 0.3 m (1ft). It is in flower from June to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Flies. The plant is self-fertile.
light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in very alkaline soils.