Perennials, Weeds > Lobelia > Lobelia siphilitica > Lobelia siphilitica
Lobelia siphilitica
Great Blue Lobelia
Origin: Eastern United States.
| Family |
| Campanulaceae |
| Genus |
| Lobelia |
| Species |
| siphilitica |
| Category |
| Perennials, Weeds |
| USDA Hardiness Zone |
| 5 |
| Canadian Hardiness Zone |
| 4 - 6a |
| RHS Hardiness Zone |
| H7 |
| Temperature (°C) |
| -29 - (-23) |
| Temperature (°F) |
| -20 - (-10) |
| Height |
| 60 cm |
Photographs
Cultivars
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Description and Growing Information
Flowering Period
| Cultivation |
| Grow in full sun or partial shade in moist, rich soil. Cut stems to ground level after flowering. |
| Growth |
| Fast |
| Leaf Description |
| Leaves to 10 cm, light green and somewhat pubescent. |
| Flower Description |
| Flowers are blue, appearing in dense spikes. |
| Propagation |
| Propagate by fresh seed in autumn. |
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