perennialN. America Native

Cockspur Flower

Coleus australis

The Story

Plant Bio

Coleus australis is a prostrate to semi-erect, semi-succulent perennial native to Pacific islands and Australasia. The crushed foliage releases a pungent citrus or minty scent, while the lower leaf surfaces carry distinct orange glandular dots.

Foliage coloration adjusts dynamically with sunlight, shifting from dull green in shaded positions to glossy, reddish, or yellowish-green when fully exposed. Terminal flowering spikes bear whorls of pale mauve to light blue flowers marked with deeper blue-violet spots.

Uses & Benefits:

Ornamental UsesOffers aromatic foliage with dynamic sun-responsive color changes and light lavender flower spikes.
Practical UsesExtremely resilient to brief drought periods thanks to its semi-succulent leaves and fleshy root base.
Ecological BenefitsNectar-rich tubular blossoms attract hummingbirds, native bees, and small insect pollinators.

Essentials

At a Glance

Plant Type

Perennial

Height

28"

Width

39"

Light

Full Sun, Partial Sun, Shade

Zones

10

Water

Low to Moderate

Humidity

Moderate

Lifespan

Perennial

Native To

Australasia, Pacific Islands, Hawaii

Toxicity

Non-toxic

Bloom period

Spring – Fall

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In flower about 9 months of the year

Planting

How to Grow

  1. Select a planting site or container with excellent drainage, using a grit-rich or sandy potting mix.
  2. Place the plant where it receives bright, indirect light or partial sunlight to maintain vibrant foliage color without scorching.
  3. Water thoroughly when the top inch of soil feels dry, allowing excess moisture to drain completely away.
  4. Apply a balanced liquid fertilizer diluted to quarter-strength monthly during spring and summer.
  5. Overwinter containers indoors before the first frost in colder regions, placing them near a bright window.

Pro Tip

Pinch back stem tips regularly during active growth to maintain a dense, compact habit; never prune hard into old leafless stems, as they lack dormant buds to regenerate.

Keep It Thriving

Care Guide

Do

  • Provide loose, sharply draining soil to protect the fleshy tuberous base from moisture buildup.
  • Pinch growing tips throughout the warm months to build a bushier canopy.
  • Expose to filtered sunlight for the richest foliage tones.

Don't

  • Do not allow soil to remain waterlogged or sit in water-filled saucers.
  • Do not cut back into bare, woody stem bases when shaping.
  • Do not leave outdoors once night temperatures drop near freezing.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Pest Check
Pinch
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Hanging BasketRock GardenContainer FriendlyGroundcover

Multiply

Propagation Methods

Good to Know

Common Questions

Cockspur Flower questions

What zones can Cockspur Flower grow in?

Cockspur Flower is hardy in USDA Zone 10: in that range it survives winter in the ground. Colder than Zone 10, grow it in a container you can move to shelter for the winter, or as an annual.

Is Cockspur Flower deer resistant?

Not reliably. Deer may browse Cockspur Flower, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Cockspur Flower bloom?

Cockspur Flower typically blooms from spring to fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Cockspur Flower need full sun?

Cockspur Flower does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Cockspur Flower drought tolerant?

Yes — once established (usually after the first full season), Cockspur Flower handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.

Keep exploring

Explore the genus

Hardy in your zone?

Grow Cockspur Flower with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.