This is a delicate lobelia that has small, lavender flowers with a white throat and slender stems. Although the common name suggests a pale blue flower colour, this is variable throughout its native range. Like all Lobelias, the flowers are attractive for pollinators, mainly long-tongue bees.
L. spicata and the similar L. kalmii are Lobelia species fit for a rockery, given their demure appearance.
Germination: easy; sown in late fall or in the spring – after 2-3 months of moist-cold stratification, in this case.