Trachelium caeruleum L.

Blue Throatwort

Family: Campanulaceae

Genus: Trachelium

Category: Perennial

Zones: 9 to 11

Size: To 3' tall and wide

Exposure: Sun


Dome-shaped flower heads, tiny tubular white or purple flowers in summer and autumn. Lance-shaped leaves, deep purple-green. Good cut flowers. Attracts birds and butterflies.

From Bot. Reg. A biennial plant; seldom exceeding two feet and a half in height; flowers either blue or white, upright, small... In bloom from July to September.


Cultivated in England in 1640.

Native to Algeria, Morocco, Italy, Portugal and Spain.

Published in Sp. Pl. 1: 171 in 1753.

Also published in Bot. Reg. 1: 72 in 1815.

From Bot. Reg. Grows naturally in shady places in Italy and the Levant. Found also by Monsieur Desfontaines in Barbary, where it grew in the rocky fissures of Mount Atlas. Cultivated in our gardens in 1640.

Other names listed in Bot. Reg.:

Trachelium azureum Gouan - synonym

Sources of Information

© 2010-12 Lisa J. Miner