Trachelium: Greenhouse Plants
C – cool, minimum of 7°C (45°F)
Trachelium caemleitm does not look much like a member of the family Campanulaceae as the flowers are not obviously bell-like. They make lovely slightly domed blue heads of tiny flowers massed together and borne in the summer. These plants are perennials but are often treated asin which case they should be sown very early between January and March. The best flowering plants are those treated as . They would be sown between May and June and grown on in a cool greenhouse or even a cold frame except for the coldest parts of the year. Seed is easily obtained and should be sown just beneath the surface of peaty and placed in a temperature of 18°C (65°F) to germinate.