General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 6a -23.3 °C (-10 °F) to -20.6 °C (-5 °F)
Maximum recommended zone: Zone 9b
Plant Height: two to three feet
Leaves: Other: Green with subtle red tinges.
Flowers: Showy
Flower Color: Purple
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Suitable Locations: Bog gardening
Uses: Cut Flower
Wildlife Attractant: Butterflies
Hummingbirds
Resistances: Deer Resistant
Containers: Suitable in 3 gallon or larger

Image
Common names
  • Cardinal Flower
Botanical names
  • Accepted: Lobelia x speciosa
  • Synonym: Lobelia x gerardii

Photo Gallery
Location: St Louis - Missouri Botanical Garden
Date: 2023-08-05
Location: Allentown, Pennsylvania
Date: 2015-07-18
Location: Cambridge University Botanic Garden
Date: July
credit: Magnus Manske
Location: Mom's garden
Date: 2017-09-14
Purchased six from American Meadows this spring. Bloomed spring a
Location: Purdue gardens Indiana  zone 5
Date: 2015-08-01
Location: Cambridge University Botanic Garden
Date: July
credit: Magnus Manske
Location: Allentown, Pennsylvania
Date: 2015-07-18
Location: All pictures taken in/on my gardens/greenhouse/property
Date: 2018-04-16

Photo Courtesy of Lazy S'S Farm Nursery.
  • Uploaded by Joy
Plant Events from our members
aspenhill On September 28, 2013 Obtained plant
Merrifield - qty 2
jg0613 On September 13, 2018 Miscellaneous Event
I lost the plants I originally had, not all at once but one at a time. This year I purchased 4 new plants and planted them in ground in s different location- more level and with aome morning sun then shade the rest of the day. They have all done well so far.
jg0613 On August 20, 2015 Bloomed
Date approx. All 4 plants growing well and all have multiple blooms.
jg0613 On July 15, 2015 Obtained plant
Obtained total of 4 plants from 2 separate shippings from Gardens in the Wood of Grassy Creek. All planted in ground in backyard N fenced section in shady bed N of detached garage.
Bschmuck On May 8, 2023 Potted up
Planted in container on playhouse with Impatiens walleriana. Hoping for hummingbirds.
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