shrub

Creeping Australian Saltbush

Rhagodia spinescens

The Story

Plant Bio

Rhagodia spinescens, commonly known as creeping Australian saltbush, is a dense, multi-stemmed evergreen shrub native to mainland Australia. Its intricately branched stems are covered in small, silver-gray to blue-gray leaves that carry a distinctive mealy texture from protective bladder hairs.

This species is highly valued in arid landscaping for its exceptional tolerance to drought, salinity, and poor soils. While wild specimens develop sharp, spine-tipped branchlets, they provide excellent structural contrast and soil stabilization in exposed coastal or desert gardens.

Uses & Benefits:

Ornamental UsesProvides a striking, fine-textured silver-gray foliage contrast in xeric and coastal garden designs.
Practical UsesFunctions as an exceptionally drought-tolerant groundcover, low hedge, or soil stabilizer on steep slopes.
Ecological BenefitsOffers dense protective cover and nesting habitat for small garden birds and beneficial insects.

Essentials

At a Glance

Plant Type

Shrub

Height

118"

Width

157"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

Low to Moderate

Lifespan

Perennial

Native To

Australia

Toxicity

Non-toxic

Bloom period

Summer

J
F
M
A
M
J
J
A
S
O
N
D

In flower about 3 months of the year

Planting

How to Grow

  1. Select a planting site in full sun to partial shade with well-drained soil.
  2. Dig a hole twice as wide as the root ball but equal in depth to ensure the crown sits level with the surrounding soil.
  3. Water deeply immediately after planting to settle the soil around the roots.
  4. Apply a thin layer of organic mulch around the base, keeping it clear of the main stems to prevent rot.
  5. Irrigate sparingly during the first summer to establish the root system, then transition to dryland conditions.

Pro Tip

Avoid over-watering and over-fertilizing, which forces lanky, floppy growth that ruins the naturally tight, silver form.

Keep It Thriving

Care Guide

Do

  • Grow in exceptionally well-drained soil to prevent root rot.
  • Prune every two to three years to maintain a compact shape and prevent the center from thinning.
  • Allow the soil to dry out completely between waterings once established.

Don't

  • Do not prune heavily into old, leafless bare wood, as the plant lacks dormant buds to regenerate from these areas.
  • Do not over-fertilize, which causes the plant to become lanky and lose its tight silver form.
  • Do not plant in low-lying areas prone to standing water or waterlogging.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Pest Check
Propagate
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Erosion ControlHedgeRock GardenCoastal GardenXeriscaping

Multiply

Propagation Methods

Good to Know

Common Questions

Creeping Australian Saltbush questions

What zones can Creeping Australian Saltbush grow in?

Creeping Australian Saltbush is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Creeping Australian Saltbush deer resistant?

Yes — Creeping Australian Saltbush is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Creeping Australian Saltbush bloom?

Creeping Australian Saltbush typically blooms in summer through summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Creeping Australian Saltbush need full sun?

Creeping Australian Saltbush does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Creeping Australian Saltbush drought tolerant?

Yes — once established (usually after the first full season), Creeping Australian Saltbush 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 Creeping Australian Saltbush 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.