About
An erect perennial to 90cm, usually grown as an annual, with lance-shaped leaves and small, slightly scented, violet-blue flowers in domed clusters to 15cm across in summer.
About the genus
Trachelium can be cushion-forming or erect perennials with small, simple leaves and tubular flowers with 5 spreading lobes, in summer
Growing conditions
SunlightFull sun
Soil typeLoam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectWest-facing, East-facing
ExposureExposed, Sheltered
UK hardinessH2
Plant details
Plant typeBedding, Conservatory Greenhouse, Herbaceous Perennial, Annual Biennial
HabitBushy
FoliageDeciduous
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height1-2 years
Suggested usesCity and courtyard gardens, Patio and container plants, Cottage and informal garden
Native toW Mediterranean
FragranceFlower
Care notes
CultivationGrow in moderately fertile, well-drained soil in full sun, ideally with some midday sun. Water freely in dry weather
PruningCut back after flowering
PropagationPropagate by seed sown at 16°C in spring
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free