Hardy Cyclamen. The ever popular species C. hederifolium (Autumn flowering) and C. coum (Winter-Spring flowering) are exquisite yet easy plants for naturalising under trees, at the foot of a North wall, in the rock garden, or even in short grass. They should be planted on receipt no more than 3-4cm deep. All plants are seed raised in nurseries in the UK or Holland and are either supplied in pots or freshly lifted.