Chuparosa

Justicia californica. Family Acanthaceae. Shrub.

Also called Hummingbird bush, Beloperone.

Chuparosa is an open, green-stemmed desert shrub native to the southwestern United States and northwestern Mexico. Gardeners grow it for its tubular red flowers, which attract hummingbirds, and its ability to survive heat and drought. It needs a warm, exceptionally well-drained site; in colder climates, grow it in a container brought under cover for winter.

Hardiness

USDA zones 9a to 11b

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13

Grows outdoors in the shaded zones. Select a zone to see what else grows there.

Chuparosa
Photo: Alix Kosmala
Chuparosa
Photo: velodrome
Chuparosa
Photo: Dan Vickers

At a glance

Sun
Full sun; tolerates light afternoon shade in very hot inland gardens.
Water
Low once established. Water deeply but infrequently during prolonged dry weather, allowing the soil to dry between waterings.
Soil
Sharply drained sandy, gravelly or rocky soil; tolerates poor and alkaline soil but dislikes wet clay.
Height
3-6 ft (0.9-1.8 m)
Spread
4-6 ft (1.2-1.8 m)
Flowers
Mainly late winter through spring, with further flushes after rain or watering; tubular scarlet-red flowers, occasionally yellow.
Foliage
Small, soft, oval green leaves on slender green stems. Leaves drop during drought or cold, leaving the stems to carry on photosynthesis.
Growth
Moderate; faster with warmth and occasional deep watering.
Care needed
Low

The year at a glance

  • Pollinators
  • Drought tolerant
  • Heat tolerant
  • Wildlife
  • Low allergen
JFMAMJJASOND
Flowers
Plant

Northern hemisphere months. In Australia, shift them by six.

Difficulty
Moderate
Toughness
Fairly tough

Will it suit your garden?

Pick your zone, country, light and whether you have pets.

Full sun is 6 or more hours of direct sun a day, part shade 3 to 6 hours, shade under 3.

How it grows

  1. Planting day

    1.6 ft (0.5 m)

  2. After 1 year

    2.3 ft (0.71 m)

  3. After 2 years

    3 ft (0.93 m)

  4. After 3 years

    4 ft (1.1 m)

  5. After 5 years

    4 ft (1.4 m)

    full size

About 4 years to full size.

From a typical nursery size, at an average rate for this kind of plant. A rule of thumb, not a forecast.

Good to know

Cats and dogs
Safe
Native to
the US
Growth rate
Fast

Care

Jobs through the year

WaterMay, Sep, every 21 days
For established ground plants, water only during drought after soil dries; young plants need closer checks.
WaterJun–Aug, every 14 days
Deep-water only during prolonged dry weather; let soil dry and keep water off the crown.
WaterJan–Apr, Oct–Dec, every 30 days
For frost-free overwintering pots only, water sparingly when dry; avoid wet, cold roots.
MulchMay
Use a light gravel mulch, keeping it clear of the crown.
PruneMay–Jun
After spring flowering, lightly shorten wayward stems and remove confirmed dead wood.
ProtectJan–Apr, Oct–Dec
In zone 6–7, keep in a movable pot and overwinter somewhere bright and frost-free.
  • Water new plants deeply, then let the root zone dry before watering again; gradually reduce watering as roots establish.
  • Plant on a mound or slope if drainage is uncertain, and keep irrigation away from the crown.
  • Use gravel mulch rather than moisture-retentive mulch around the base.
  • Avoid routine feeding; rich soil and heavy fertilising encourage weak, sprawling growth.
  • In containers, use a gritty potting mix and overwinter in a bright, frost-free place with sparse watering.

Pruning. After the main spring flowering flush, remove dead wood and shorten wayward stems lightly to preserve the loose shape. Wait until new growth begins before cutting out frost-damaged stems, and avoid repeated shearing.

Through the year

Late winter
Enjoy the early flowers and protect container plants from frost; keep sheltered plants on the dry side.
Spring
Plant once damaging frosts have passed, choosing a sunny position with excellent drainage.
Late spring
After the main flowering flush, remove dead stems and lightly reduce sprawling growth.
Summer
Water established plants only during prolonged dry spells; leaf drop alone is a normal drought response.
Autumn
Reduce watering as temperatures fall and move containers under cover before frost.

In the garden

  • Plant among boulders and gravel for a loose, natural desert planting.
  • Combine with agaves and yuccas so its fine stems and red flowers soften their strong outlines.
  • Use near a patio or window where visiting hummingbirds can be watched in regions where they occur.
  • Group on a sunny, dry slope with other desert shrubs, allowing room for its spreading branches.

Garden styles it suits: Desert modern, Southwestern, Desert / xeriscape, California native, Wildlife garden and Dry gravel garden.

Plant it with: Brittlebush, Desert marigold, Desert globemallow, Parry's agave, Red yucca and Fairy duster.

Wildlife: The nectar-rich flowers are valuable to hummingbirds within their range and are also visited by insects. Its loose branches provide light cover for small desert wildlife.

Problems to watch for

  • Root rot in wet or poorly drained soil: improve drainage, reduce watering and avoid sites that stay wet in winter.
  • Frost damage to stems: provide a sheltered position and remove dead growth only after spring growth reveals what has survived.
  • Sparse flowering or floppy growth in shade: move to a sunnier position and avoid heavy feeding.
  • Aphids on tender shoots: wash off small colonies with water and allow natural predators to control the remainder.

Safety

Not known to be toxic to people, cats, dogs or horses, but species-specific safety information is limited. No particular plant part is established as poisonous; do not treat it as an edible plant.

Easily confused with

  • Mexican honeysuckle (Justicia spicigera)

    Usually has orange flowers and larger, more persistent leaves, giving it a much leafier appearance than chuparosa.

  • California fuchsia (Epilobium canum)

    Usually forms a lower, leafy perennial clump with narrow grey-green leaves and flowers mainly in late summer and autumn, rather than a tall, open framework of green stems.

The name

Chuparosa is a Spanish name used for hummingbirds, referring to their nectar feeding, while Justicia honours the Scottish botanist James Justice and californica refers to California.

Propagation. Sow fresh seed in a free-draining mix in warmth, or take semi-ripe stem cuttings during warm weather. Keep cuttings lightly moist rather than wet.

Checked against open data

Accepted botanical name
Justicia californica
In the US and Canada
Native in the lower 48 states.
Native range
Arizona, California and Mexico Northwest.

Sources: GBIF (CC BY 4.0), USDA PLANTS and Trefle (CC BY 4.0). The care and design notes are LandscapeGPT's own.

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