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Blue Cardinal Flower

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)

Item Size

Plant - 3" pot

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Details:

Zones: 3, 4, 5, 6, 7, 8, 9
Plant Size: 30-36" tall, 10-18" wide
Light: Half Sun / Half Shade, Mostly Shade
Bloom Time: Mid to late summer
Shipping: Most orders ship within 5 business days.

Click Here for more details, product description, reviews, how-to guides and shipping information.

 

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Details
SKU 1LOBG
Botanical Name Lobelia siphilitica
Common Name Cardinal Flower
Primary Flower Color Blue
Estimated Mature Height 30-36" tall
Ships As Bare Root
Planting Season Spring, Summer
Planting Depth Crown of plant should rest just at or above the soil surface after watering in.
Bloom Time Mid to late summer
Estimated Mature Spread 10-18" wide
Light Requirements Half Sun / Half Shade, Mostly Shade
Soil Moisture Average, Moist/Wet, Well Draining
Will Tolerate Loamy Soil, Clay Soil, Moist/Wet Soil
Zones 3, 4, 5, 6, 7, 8, 9
Suggested Uses Deer Resistant, Hummingbirds & Butterflies, Fragrant, Cut Flowers, Borders, Showy Flowers
Our Master Gardeners Suggest Pairing With:
  • Releasable Bulb Planter

    Releasable Bulb Planter

  • Seed Spreader

    Seed Spreader

Description

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.

Our Master Gardeners Suggest Pairing With:
  • Releasable Bulb Planter

    Releasable Bulb Planter

  • Seed Spreader

    Seed Spreader

Reviews

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3.3

(based on 3 reviews)

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Reviewed by 3 customers

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4.0

Blue version od Red Cardinal

By Greenie

from New City, NY

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.

 
1.0

Still no growth yet.

By Plant lover

from Malden,MA

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 ?

 
5.0

Hummer magnet!

By Greenie

from New City, NY

Pros

  • Hummingbird must

Cons

    Best Uses

      Hummer magnet....a must

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      1
      How-To Guides
      Our Master Gardeners Suggest Pairing With:
      • Releasable Bulb Planter

        Releasable Bulb Planter

      • Seed Spreader

        Seed Spreader

      Shipping

      Most orders ship within 5 business days.

      View Shipping Rate Chart

      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 ‘Details’ tab describes how that item will ship. All perennials are packaged to withstand shipping and are fully-guaranteed. Please open upon receipt and follow the instructions included.

      Perennials are shipped at the proper planting time for your hardiness zone. Perennial orders may arrive separately from bulbs and 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.

      Our Master Gardeners Suggest Pairing With:
      • Releasable Bulb Planter

        Releasable Bulb Planter

      • Seed Spreader

        Seed Spreader

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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)

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