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  1. Lobelia siphilitica - Wikipedia

    • Lobelia siphilitica, the great blue lobelia, great lobelia, or blue cardinal flower, is a plant species within the family Campanulaceae. It is an herbaceous perennial dicot native to eastern and central Canada and United States. There are two recognized varieties of Lobelia siphilitica, var. siphilitica and var. ludoviciana. Blooming from August to October, it is short-lived, lasti… 展开

    Description

    Growing up to 4 feet (1.2 m) tall, Lobelia siphilitica has a single ridged, unbranched stem, which is smooth or sparsely … 展开

    Distribution and habitat

    Great lobelia is found in the north from Maine to Manitoba and in the south from North Carolina to Texas. Sparse populations can be found as far west as Wyoming and Colorado.
    It thrives in mois… 展开

    Cultivation

    Lobelia siphilitica is sold in garden centers and is often grown in zones 4 to 9. It can be propagated either by cutting or seed. 展开

     
  1. Lobelia siphilitica (Great Blue Lobelia) - Gardenia

    Learn about this North American native perennial that produces bright blue flowers from late summer to mid-fall. Find out how to grow, care, and use it in your garden, and see pictures and guides.

  2. Lobelia siphilitica - Plant Finder - Missouri Botanical Garden

  3. Lobelia siphilitica (Blue Cardinal Flower, Great Blue Lobelia, Great ...

  4. Blue Lobelia – Complete Guide to Lobelia Siphilitica - Growit Buildit

  5. Great Blue Lobelia - US Forest Service

    Great Blue Lobelia (Lobelia siphilitica) By David Taylor. Great blue lobelia, is a member of the Campanulaceae (Bellflower) family. The family includes around 2,400 mostly herbaceous species, most of which occur in North America, …

  6. Lobelia siphilitica (Great Blue Lobelia) - Master …

    Lobelia siphilitica (Great Blue Lobelia) Great Blue Lobelia typically grows in moist to wet locations along streams, swamps, and meadows. It is common in the mountains of the Mid-Atlantic Region, frequent in the Piedmont, and …

  7. Lobelia siphilitica - New England Wild Flower Society

    Great blue lobelia's flowers make great landing pads for our native bumblebees, never far away when this species is blooming. A versatile plant, this long-flowering summer perennial can stand moist to borderline-dry soils, and …

  8. Lobelia siphilitica - Phoenix Perennials

  9. Great Blue Lobelia (Lobelia siphilitica) - Garden.org

    Great Blue Lobelia (Lobelia siphilitica) is a beautiful late-summer perennial native to eastern North America. Lobelia siphilitica has special value to native and bumble bees. It attracts several bee species, including digger, yellow-faced, …