Great blue lobelia (Lobelia siphilitica) produces spikes of blue flowers in mid- to late summer or early fall on 2- to 3-foot-tall plants. This US native often self-sows, creating beautiful drifts of blue in borders and meadow gardens. Full sun to partial shade, with soil that is on the moist side. Perennial; Zones 3 or 4 to 9.
Collected in mid to late September 2023. At least 50 extremely small seeds. Unknown ecotype. Shipping to US addresses only.
Please read the germination information as well before ordering.