The Great Lobelia is a stately plant, up to 1.5 m tall; however, when grown in full sun it will remain shorter. The large, blue flowers are arranged in dense inflorescences along the stems and attract lots of pollinators from mid to late summer. Bumblebees are really in love with it!
A hardy, beautiful blue-flower plant for the woodland garden, with a desirable bloom in late summer. Use it in groups for a blue splash, or solitary. It will seed around a bit if grown in a moist, favorable place, which is a desirable trait in this particular case.
Native Americans used it as a cure for syphilis, hence the name ‘siphilitica’; unfortunately, it didn’t prove to have the implied properties but instead it ended up being a ‘great’ blue lobelia for the garden!
Germination: with cold-moist stratification for 2-3 months; seeds are small and require light for germination.