Lobelia cardinalis
Plate — illustration to come
Native · New Jersey

Cardinal Flower

Lobelia cardinalis

Perennial flower

The reddest red in the native palette. Vertical spikes of brilliant scarlet blossoms shaped precisely for a hummingbird's beak — plant it and you plant a hummingbird feeder that never needs refilling.

At a glance

The spec sheet.

Habitat
Wet meadows, streambanks, seeps, pond edges
Bloom time
July – September
Sun
Part sun to part shade
Soil
Rich, consistently moist to wet
Moisture
Moist to wet — do not let dry out
Height
2–4 feet
For the wildlife

What it attracts.

The species that visit, feed on, or depend on this plant — and how they use it.

  • Ruby-throated hummingbird

    Nectar source

    Primary pollinator — flower is nearly hummingbird-exclusive

  • Some long-tongued bees & butterflies

    Nectar source

Notes on growing

Short-lived (2–3 years per plant) but self-sows readily in the right conditions. Don't mulch heavily over the crown — it needs to see winter to reseed. Plant near a hose or downspout.

Sources

Xerces Society · Jersey-Friendly Yards · Native Plant Society of NJ