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Blue Lobelia

Blue Lobelia

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The Blue Lobelia Plant, also known as Lobelia siphilitica or Blue Cardinal Flower is a plant that blooms pale purple-bluish flowers with tiny white streaks accenting the blossom. 


Where To Plant Blue Lobelia 


This plant is Native to the Eastern United States area and is from the Campanulacae family. The category of plants it is a member of is called the Herbaceous perennial group. Lobelia siphilitica prefers dark, rich and moist soils and will sprout effectively in either full sun or part shade rotation. For full sun, a Northern cooler climate works best to balance the plant's temperature requirements. 

Blue Lobelia Requirements 


If growing with a Central Coast or Southern Climate, part shade is ideal for health. This plant requires consistent watering- moisture should always be present. In its native environment, they grow alongside streams and swamps, this serves as an indication of how much moisture it requires. 

The bloom time of this plant occurs between July and September- perfect for beginning gardeners, the maintenance level is low for this species. Identifying the blooms by looking for dark tubular flowers with three lobes. The scientific name of this species bears homage to Matthias de l’Obel, a French Botanist. This plant is not known to be susceptible to chronic insect or disease afflictions. It is capable of withstanding pest invasions as well as deer, although snails and slugs have been known to occasionally take a bite. 

Blue Lobelia Uses 


Common uses for Blue Lobelia include wild gardens or anywhere near running water or large pools of water. It is known for having the ability to self-seed, attracts bees and hummingbirds, and is extremely sensitive to drought. It is commercially available and has a collection date in the Northern US starting in autumn. 

 Hardy Planting Zones- 4-9 Sun or Shade – Sun and Part Shade Mature Height - 24-36" Mature Width- 12-16" Bloom Season – Summer (July to September) Gardener Status- Beginner Soil Type- Loam/Sand/Clay

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