King's-crown
Plants Active during the day

King's-crown

Justicia carnea

The King's-crown is a tropical masterpiece that turns shaded garden corners into vibrant wildlife theaters. Its explosive pink plumes act as a natural beacon for hummingbirds and butterflies seeking a high-energy nectar feast.

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Quick Identification

straighten

Size

Grows 1.2–2.1 m (4–7 ft) tall with a spread of 0.6–0.9 m (2–3 ft)

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Colors

Large rose-pink to deep crimson tubular flowers; dark green, veined leaves with occasional purple undersides

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Key Features

  • Upright, plume-like flower spikes 10–20 cm long
  • Large, opposite, lance-shaped leaves with prominent veins
  • Squared stems characteristic of the acanthus family
  • Shade-tolerant, shrubby growth habit
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When You’ll See Them

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Activity pattern Active during the day
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Peak hours 8 AM - 5 PM (Peak pollinator activity)
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Season June-October
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Diet Produces energy through photosynthesis; requires nitrogen-rich, well-draining soil and consistent moisture to support its heavy flowering cycles.
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Habitat Tropical rainforest understory, shaded woodland edges, and humid suburban gardens.

public Geographic range

Where Does the King's-crown Live?

King's-crown is native to the lush Atlantic Forest regions of South America, specifically eastern and southern Brazil. Because of its stunning ornamental value, it has been introduced and naturalized across many tropical and subtropical regions worldwide, including Central America, the Caribbean, and the Galapagos Islands. In North America, it thrives as a perennial in the frost-free zones of Florida, the Gulf Coast, and Southern California, while often being kept as a container plant in more temperate climates.

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6 Countries
8.5M km² Range
Least Concern Conservation
BR Brazil
Marginal
US United States
Marginal
MX Mexico
Marginal
CO Colombia
Marginal
CR Costa Rica
Marginal
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iNaturalist / Verified observation data
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Behavior

King's-crown is an evergreen perennial shrub known for its dramatic, exploding floral displays that brighten shaded environments. Unlike many tropical plants that require full sun, this species has adapted to thrive in the understory, making it a vital nectar source in dappled-light habitats. It blooms in flushes from early summer through the first frost, producing dense terminal clusters of curved, tubular flowers.

While the plant itself is stationary, it behaves as a central hub for backyard biodiversity. Its high nectar production creates a predictable daily schedule for local pollinators. It is a resilient grower but communicates its needs clearly through its foliage; its large leaves will conspicuously wilt when thirsty, recovering quickly once watered, which makes it an excellent indicator plant for garden health.

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Camera Tips

To capture the most exciting wildlife activity, position your camera approximately 3 to 4 feet away from the most vibrant flower plumes. King's-crown is a premier 'hummingbird magnet,' and these birds usually approach the flowers from the side or top to access the nectar tubes. Setting your camera at eye level with the blooms will provide the best angle for capturing the iridescent feathers and hovering action of visitors like the Ruby-throated or Black-chinned hummingbird.

Because this plant thrives in shade, lighting can be a challenge for trail cameras. Look for a spot where a shaft of morning sun hits the flowers to trigger better color sensors in your AI camera. If your device allows for shutter speed adjustments, use a high-speed setting to freeze the rapid wingbeats of the butterflies and hummingbirds that are inevitably drawn to the pink plumes. Use a 'Zone Trigger' setting if available, focusing specifically on the space 6 inches in front of the flower heads.

In addition to birds, keep your camera running during the afternoon to catch various swallowtail butterflies and sphinx moths. Avoid using heavy baits near the plant, as the natural nectar is more than enough to lure the target species. Instead, ensure the plant is well-watered; a turgid, healthy King's-crown produces more nectar and maintains its upright 'crown' shape, making for much more aesthetic and successful captures during the peak summer flowering season.

Frequently Asked Questions

Hummingbirds and butterflies are most active on King's-crown during the early morning (7–10 AM) and late afternoon (4–6 PM) when nectar production is at its peak and temperatures are cooler.
Keep the plant in a partially shaded area and ensure it stays well-watered. Healthy, hydrated King's-crown plants produce significantly more nectar, which hummingbirds can detect from a distance.
Butterflies use their long proboscis to drink the sweet nectar hidden deep inside the tubular pink flowers. They are particularly attracted to the large, easy-to-land-on flower spikes.
Yes, they are very popular in USDA zones 9–11 as shade-loving ornamentals. In colder climates, they are frequently seen in suburban areas as patio container plants during the summer months.
While both are in the Justicia genus, King's-crown has much larger, broader leaves and upright, crown-like pink plumes, whereas the Shrimp Plant (Justicia brandegeeana) has drooping, overlapping bracts that resemble a shrimp's tail.

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