Plant Library
Lobelia siphilitica
Common Name: Lobelia
Botanical Name: Lobelia
Variety: siphilitica
Blossom Color: Blue
Bloom Time: Jul-Aug
Zone: 4 to 9
Exposure: Sun to Part Shade
Mature Height: 24"
Mature Width: 12-18"
Notes: North American native. Clump-forming with tall spikes of blue tubular flowers in late summer. Rich, moist well-drained soil. Cut. Container. Hummingbirds. Borders. Massing. Deer resistant.