PlantsFlowers

Cardinal Flower

Cardinal Flower (Lobelia cardinalis)
Hardyplants · CC0
Cardinal Flower in flower
In flower · no rights reserved · CC0

Lobelia cardinalis

Chicago-region native. Suited to zone 6a.

Red hummingbird flower

ModerateFlowersAlso Rain GardenRain garden
Light
Part shade–sun
Moisture
Moist–wet
Mature size
2–4 ft
Spacing
18–30 in
Bloom or harvest
Flowers Jul–Sep
How it spreads
Short-lived clump / seedlings
What to buy
Plug or division for reliable residential establishment; seed for larger restoration areas.
When to plant
Apr–May; late Aug–Sep, finishing about six weeks before the first frost.

In the design

Leave some stems and seedheads through winter; divide or thin only when needed.

Plants that share this spot

More in this group

Reference details
Conservatism value
7
Wetland indicator
OBL