Cambridge blue est une plante remarquable avec des fleurs de couleur bleu pâle, encapuchonnées sur des tiges raides et droites. Superbes en bordures, sous serre, ou bien dans une véranda.

Sowing Time: February to June or September to October. Sow seed in pots or trays of moist seed compost. Do not cover the seed. Keep at a temperature of between 15-20C (59-68F). After sowing, do not exclude light as this helps germination. Keep the surface of the compost moist but not waterlogged; germination usually takes 14-30 days.

When large enough to handle, transplant seedlings into 7.5cm (3in) pots or trays. Gradually acclimatise to outdoor conditions for 10-15 days before planting out after all risk of frost, 45cm (18in) apart. For best results, provide any ordinary, well-drained soil in full sun.