Great Blue Lobelia
- Botanical Name
- Lobelia siphilitica
- Min Zone
- 4
- Max Zone
- 9
- Height
- 2 to 3 feet
- Width
- 12 to 18 inches
- Flowers
- July to September: raceme of 2-lipped light to dark blue held atop sturdy stems
- Light
- Full sun to part shade
- Soil
- Moist to wet
- Planting & Care
- Needs constant, consistent moisture
- Benefits from part shade in hot climates
- Divide in spring
- May self seed in optimum conditions
- Excellent for naturalizing along streams, banks, swamps and low wooded areas
- Problems
- None serious
- Varieties
- Alba - white flowers
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