However, lobelias can also be pink, purple, or white. The annual variety is usually referred to as dwarf lobelia. This flower grows easily in USDA hardiness zones 9 through 11 and blooms from ...

but Lobelia erinus is one of the most common. This flower is often grown as an annual and comes in blue, violet, white, and red. It's tricky to grow from seed, but doable. Sow in the greenhouse 10 ...

Fan of blue flowers? Lobelia is a charming addition for a flowering living wall. There are a few varieties of this dainty flower, ranging from a periwinkle blue shade to deep purple and even red.

It spreads by basal rosettes at the base of the plant, which can be divided every few years, and also by seed. Psst—these are the best perennials to grow for hummingbirds. Great blue lobelia is ...