sweet pea 'Colin Unwin'

Grow in humus-rich, fertile, well-drained soil in full sun or light dappled shade. Incorporate well-rotted organic manure before planting and apply a balanced liquid fertilizer every two weeks when in growth. Deadhead regularly. See sweetpea cultivation for further information

Deadhead regularly and cut back after flowering

Propagate by seed. Sow in a cold frame in early autumn, early spring or in-situ in mid-spring

May be attacked by aphids, slugs, snails and thrips

May be affected by powdery mildews, Fusarium wilt and sweet pea viruses