Blue Cardinal Flower

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Blue Cardinal Flower is a tough, hardy perennial with large leaves and gorgeous, light blue blooms. It is easy to grow and will thrive in either sun or shade. It is perfect for planting in the back of a perennial garden to offset smaller flowers. (Lobelia siphilitica)

Zones 3 - 9
Advantages
Deer Resistant
Deer Resistant
Attract Hummingbirds
Attract Hummingbirds
Bee Friendly
Bee Friendly
Fragrant
Fragrant
Cut Flowers
Cut Flowers
Native
Native
Light Requirements
Half Sun / Half Shade
Half Sun / Half Shade
Full Shade
Full Shade
Mature Plant Size 30-36" tall, 10-18" wide
Bloom Time Mid to late summer
SKU 1LOB

Blue Cardinal Flower is actually quite different in growth from its wildflower counterpart. It is a tougher, heftier plant with somewhat coarse, larger leaves, and the flowers appear in the leaf axils, unlike its elegant cousins red flowers that are in leaf-free flower spikes, held high above the plant. But the blue flowers are lovely and plentiful. Best of all, this plant is not as picky as to growing conditions. It is perfectly happy in any perennial garden, with or without shade. And it is simple to propagate. Let some of the flower heads go to seed in the fall, and you'll have a dozen new plants coming up next spring.

Blue cardinal flower makes a great background for smaller wildflowers, since several together form a wonderful screen-like clump of towering plants with blue flowers for a long period.

Oh, and the name. The botanical species name, syphilitica, comes from the Native American belief that this plant was a cure for syphillis.

Associated SKUs
1LOBG
1FLOB1 (Plant - 3.5" pot) - Out of stock.
1LOB (Plant - 3" pot)
1FLOB3 (Bag of 3) - Out of stock.
Common Name Cardinal Flower
Botanical Name Lobelia siphilitica
Zones 3, 4, 5, 6, 7, 8, 9
Light Requirements Half Sun / Half Shade, Full Shade
Flower Color Blue
Mature Height 30-36" tall
Estimated Mature Spread 10-18" wide
Bloom Time Mid to late summer
Planting Depth Plant so that the top of the root is 1" below the soil line.
Ships As Potted Plant
Native Yes
Planting Time Spring / Summer
Soil Type Clay Soil, Loamy Soil, Moist/Wet Soil
Soil Moisture Average, Moist/Wet, Well Draining
Advantages Deer Resistant, Attract Hummingbirds, Bee Friendly, Fragrant, Cut Flowers, Native
Neonicotinoid-Free Yes - Learn More
Ships to Canada No

Shipping begins in late March based on ground temperatures, warmest zones first.

As soon as your order is placed you will receive a confirmation email. You will receive a second email the day your order ships telling you how it has been sent. Some perennials are shipped as potted plants, some as perennial roots packed in peat.  The ‘Plant Information’ section describes how that item will ship. All perennials and spring-planted bulbs are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

Perennials and spring-planted bulbs are shipped at the proper planting time for your hardiness zone. Perennial and spring-planted bulb orders will arrive separately from seeds. If your order requires more than one shipment, there is no additional shipping charge. See our shipping information page for approximate ship dates and more detailed information. If you need express shipping or have any questions, please call Customer Service toll-free at (877) 309-7333 or contact us by email.

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REVIEW SNAPSHOT®

by PowerReviews
American MeadowsBlue Cardinal Flower
 
3.4

(based on 11 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (4)

78%

of respondents would recommend this to a friend.

Pros

No Pros

Cons

No Cons

Best Uses

No Best Uses
    • Was this a gift?:
    • No (3)

Most Liked Positive Review

 

Long & Beautiful blooms!

First year in the ground and I had the most wonderful long stalk of flowers that just seemed to bloom on and on into the cooler months! They are still in their dormant rosette...Read complete review

First year in the ground and I had the most wonderful long stalk of flowers that just seemed to bloom on and on into the cooler months! They are still in their dormant rosette stage (a small cluster of leaves close to the ground), but it was late in the year that they performed last year, so I'm not worried at all. Just suddenly -BOOM- flower stalks appear! The flowers are GREAT for pressing, too:) I don't have any in full Florida sun, they are more half sun, and seem perfectly happy.

VS

Most Liked Negative Review

 

Still no growth yet.

love the color of the flowers and their shape. Designated a prominent area for them to enhance the background plants of paler color. I put them in the ground the next day after they...Read complete review

love the color of the flowers and their shape. Designated a prominent area for them to enhance the background plants of paler color. I put them in the ground the next day after they arrived, mulched it, marked the area, and sadly nothing show up so far. I am in zone 5-6. Do I have to wait longer before I approach American Meadows ?

Reviewed by 11 customers

Sort by

Displaying reviews 1-11

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5.0

Blue ardinal Flower

By 

from Hinckley, Mn

About Me Avid Gardener

Verified Reviewer

Pros

  • Accurate Instructions
  • Attractive
  • Fragrant
  • Hardy
  • Healthy
  • Lightweight

Cons

    Best Uses

    • Garden
    • Outdoors

    Comments about American Meadows Blue Cardinal Flower:

    I bought the plant as I was told hummingbirds love the cardinal flower; although I haven't notice any hummers by it I sure they will next year! Besides it's a beautiful plant!

    • Primary use:
    • Personal
     
    1.0

    Never came up this spring

    By 

    from Holmdel, NJ

    About Me Avid Gardener

    Verified Reviewer

    Pros

      Cons

        Best Uses

          Comments about American Meadows Blue Cardinal Flower:

          I planted this in a spot where I thought it would be reasonably happy, but it never came up this spring after a very hard winter.

          • Primary use:
          • Personal
           
          5.0

          Love the color

          By 

          from West Jefferson, Ohio

          Pros

          • Color is beautiful

          Cons

          • Color faded

          Best Uses

            Comments about American Meadows Blue Cardinal Flower:

            Color was beautiful, but they faded quickly in the summer sun. I have them on the west side of my garden.

            • Was this a gift?:
            • No
             
            1.0

            Blue Cardinal Flower

            By 

            from New York, NY

            Verified Reviewer

            Pros

              Cons

              • Did not survive winter

              Best Uses

                Comments about American Meadows Blue Cardinal Flower:

                did not survive the winter

                • Was this a gift?:
                • No
                 
                1.0

                blue cardinal flower

                By 

                from Edwards, CO

                Verified Reviewer

                Pros

                  Cons

                    Best Uses

                      Comments about American Meadows Blue Cardinal Flower:

                      Did not grow, no sign of growth this spring after planting last fall.

                      • Was this a gift?:
                      • No
                       
                      5.0

                      Long & Beautiful blooms!

                      By 

                      from Gainesville, Fl.

                      Verified Reviewer

                      Comments about American Meadows Blue Cardinal Flower:

                      First year in the ground and I had the most wonderful long stalk of flowers that just seemed to bloom on and on into the cooler months! They are still in their dormant rosette stage (a small cluster of leaves close to the ground), but it was late in the year that they performed last year, so I'm not worried at all. Just suddenly -BOOM- flower stalks appear! The flowers are GREAT for pressing, too:) I don't have any in full Florida sun, they are more half sun, and seem perfectly happy.

                       
                      5.0

                      Love this flower

                      By 

                      from North Alabama- Huntsville

                      Verified Reviewer

                      Pros

                      • Beautiful Flowers Color

                      Cons

                        Best Uses

                          Comments about American Meadows Blue Cardinal Flower:

                          Arrived in great shape. Resistant to insects. Beautiful color. Lasted about 6 weeks. Bloomed first year.

                          (1 of 1 customers found this review helpful)

                           
                          4.0

                          Great for first time gardners

                          By 

                          from Kinross, MI

                          Comments about American Meadows Blue Cardinal Flower:

                          This was a low maintance, quick growing plant. I like it for the back of a flower garden, because of it's height. Great color.

                          (2 of 3 customers found this review helpful)

                           
                          4.0

                          Blue version od Red Cardinal

                          By 

                          from New City, NY

                          Comments about American Meadows Blue Cardinal Flower:

                          Haven't had it bloom yet as its the 1st year...should be good.
                          Treat like the red variety and be sure to take basal plantlets in Fall & following Spring to keep your stock going as they are short lived.

                          (1 of 1 customers found this review helpful)

                           
                          1.0

                          Still no growth yet.

                          By 

                          from Malden,MA

                          Comments about American Meadows Blue Cardinal Flower:

                          love the color of the flowers and their shape. Designated a prominent area for them to enhance the background plants of paler color. I put them in the ground the next day after they arrived, mulched it, marked the area, and sadly nothing show up so far. I am in zone 5-6. Do I have to wait longer before I approach American Meadows ?

                          (1 of 1 customers found this review helpful)

                           
                          5.0

                          Hummer magnet!

                          By 

                          from New City, NY

                          Pros

                          • Hummingbird must

                          Cons

                            Best Uses

                              Comments about American Meadows Blue Cardinal Flower:

                              Hummer magnet....a must

                              Displaying reviews 1-11

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                              USDA Hardiness Planting Zones

                              To determine if a plant is sufficiently cold hardy, the USDA created numbered zones indicating winter low temperatures; the lower the zone number the colder the winter.

                              • If the coldest winter temperature expected in your area is -15°F (zone 5) then any plants rated zones 3-5 will survive the winter temperatures in your area.
                              • If you live in very warm winter areas (zones 9-11) plants with zones 3-4 ratings are not recommended. The lack of freezing winter temperatures do not provide a time for winter dormancy (rest).

                              Find Your Planting Zone:

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