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Cardinal Flower

Lobelia cardinalis, Campanulaceae

Zones
3–9
Layer
Aquatic
Lifespan
Perennial
Growth
Moderate

Guild Roles

Pollinator Attractor

Growing Conditions

Sun

Partial Shade (acceptable)Partial Sun (optimal)

Water

High

Soil pH

5.5 – 7.5

Tolerances

Drought
Frost
Heat
Pest Resistance
Disease Resist.

Companion Plants

Swamp MilkweedAsclepias incarnata
Beneficial Insect HabitatPollinator Sharing
American AlumrootHeuchera americana
Pollinator SharingBeneficial Insect Habitat
Tussock SedgeCarex stricta
Shade ProvisionPollinator Sharing

Antagonistic Plants

Indian TobaccoLobelia inflata

Both Lobelia species compete for similar soil resources and space

Blue LobeliaLobelia siphilitica

Related Lobelia species compete for similar moisture and nutrient requirements

Uses

Functions

Wildlife Habitat

Common Questions

What zones does Cardinal Flower grow in?

Cardinal Flower grows in USDA hardiness zones 3 through 9.

What are good companion plants for Cardinal Flower?

Good companions for Cardinal Flower include Swamp Milkweed, American Alumroot, Tussock Sedge.

Design guilds with Cardinal Flower and see companion relationships visually.

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