Lobelia siphilitica
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BLUE CARDINAL FLOWER
Family: Campanulaceae
GROWING GUIDE
Geographic Origin:
Eastern United States.
Plant Group:
Perennial.
Hardiness:
Sunset zones: 2-9, 12-24.
USDA zones: 5-9.
Mature size:
Height: 2-4 feet (60-120 cm).
Flowering period:
Late summer to mid autumn.
Flowering attributes:
Long spikes of bright blue tubular flowers.
Leaf attributes:
Lance shaped hairy light green leaves.
Growth habit:
Clump forming.
Light:
Full sun or partial shade.
Soil:
Fertile, moist soil.
Feeding:
Fertilize in spring with a complete organic fertilizer and again in June.
Propagation Methods:
Sow seed as soon as ripe. | Divide in spring.
Rainy Side Notes
A good perennial for adding more blue to the garden. It is important not to let soil dry out around this perennial during our typical drought of summer.
Debra Teachout-Teashon
Photographed in author's garden.
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