Lobelia Hybrid, Hybrid Cardinal Flower 'Fan Scarlet'

Lobelia x speciosa

Family: Campanulaceae (kam-pan-yew-LAY-see-ee) (Info)
Genus: Lobelia (low-BEE-lee-a) (Info)
Species: x speciosa (spee-see-OH-sa) (Info)
Cultivar: Fan Scarlet
Additional cultivar information:(Fan series)



Foliage Color:


Bloom Characteristics:

Flowers are good for cutting

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Unknown - Tell us


18-24 in. (45-60 cm)


12-15 in. (30-38 cm)

15-18 in. (38-45 cm)


USDA Zone 3b: to -37.2 C (-35 F)

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade


All parts of plant are poisonous if ingested

Bloom Color:


Scarlet (Dark Red)

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall




Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

By dividing the rootball

From seed; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed


This plant has been said to grow in the following regions:

North Little Rock, Arkansas

Greenville, Indiana

Owosso, Michigan

Plainwell, Michigan

Little Falls, Minnesota

Santa Fe, New Mexico

Elizabeth City, North Carolina

Saint Louisville, Ohio

Salem, Oregon

Lebanon, Pennsylvania

Austin, Texas

Copperas Cove, Texas

East Port Orchard, Washington

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Gardeners' Notes:


On Aug 8, 2013, Billie_Sue from Saint Louisville, OH wrote:

Well established plant bed, but did exceptionally well this year due to a very wet season.


On Jul 15, 2012, Sandwichkatexan from Copperas Cove, TX wrote:

Not quite sure how to feel about this plant , Here in Central Texas it needs copious amounts of water . I purchased it to attract hummingbirds but they seem to like the salvias and cigar flowers better. The flowers are themselves quite beautiful but the plant itself looks like a weed and where I have it, it gets tons of water and spreads. As of yet mixed love hate with this plant I prefer the blue lobelia siphilicata it is prettier and less weedy looking. and here the hummingbirds seem to go to the blue before this one . Still on the fence about ripping it out and planting another type of salvia or leaving it and letting it spread .


On Sep 17, 2004, hanna1 from Castro Valley, CA (Zone 9a) wrote:

I love the way it blooms.Prefers consistent soil moisture. Grows well at water's edge or in bog gardens, I have mine in a pot in partial shade, I keep it pretty wet or it let's me know right away. Vibrant flowers, Compact, bronze foliage, vigorous base-branching habit. Vivid scarlet flowers on dense, strickly upright spikes.
Members of the Fan series have an earlier bloomtime than the species. Blooms mid-Summer/Fall. Humingbirds and Swallowtails love it.
it loves a damp location, near a pond, will adapt to wet feet or well drained soil. Deadhead blooms, will improve overall appearance. Cut back in Spring not Fall, foliage will help the root zone in Winter. Mulch in Winter.
look good planted with hostas, daylilies, spiderwort, astilbe and ferns. I didn't take a pict... read more