Lobelia siphilitica
Great Blue Lobelia
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Item #: 361
Zones: 5a to 9b, at least
Dormancy: Evergreen
Height: 30" tall
Origin: United States
Pot Size: 3.5" pot (24 fl. oz/0.7 L)
The great lobelia is the little known sibling to the gaudier L. cardinalis. With a similar growth habit, L. siphlitica forms a winter rosettte, which lenghtens upwards in spring, ending in a 30" stalk of lavender blue flowers in August and September. L. siphlitica grows best in moist to damp soils, although it is quite tolerant of short periods of drought.
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