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  • Value Packs
  • Canadian Grown
  • Shipped throughout Canada*

Lobelia siphilitica

Great blue lobelia

Main interest:
tall spikes of dark blue, sometimes white flowers in late summer
Soil & Exposure:
full sun to partial shade.
Growth type:
forms clumps
Flower:
blue, sometimes white
Foliage:
dark green
USDA Hardiness:
zone 4: -34 ºC (-30 ºF) View Zone Map
Mature height & width (max.):
height: 28 inches (70cm) width: 20 inches (50cm)
Please use availability information as a guide only. The weather is a fickle thing, and impacts when our plants are actually available for shipping. Please be aware that we are not answering emails regarding plants availability. The best advice we can give you is to check back once in a while, choose a size option and check the current stock.

$4.99$19.99

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Please check other size options for availability, if you don’t see your first choice.
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