groundcover

Australian Astroturf

Scleranthus biflorus 'Lime Lava'

The Story

Plant Bio

Scleranthus biflorus is a dense, cushion-like perennial herb native to the alpine and coastal regions of Australia and New Zealand. It forms a tight, spongy, moss-like carpet of tiny, needle-like evergreen leaves that spread slowly over rocks and soil.

'Lime Lava' is distinguished by its exceptionally vibrant, lime-green to yellow-green foliage that maintains its bright coloration throughout the year. Its minute, petal-less flowers appear in pairs on short stalks during late spring but remain largely inconspicuous against the vivid mat.

Uses & Benefits:

Ornamental UsesForms an exceptionally neat, bright chartreuse cushion that mimics moss, providing excellent texture in rock gardens.
Practical UsesSuppresses weeds effectively once the dense, spongy mat completely covers the soil surface.
Ecological BenefitsProvides minimal ecological value in North America, acting primarily as an exotic ornamental accent.

Essentials

At a Glance

Plant Type

Groundcover

Height

4"

Width

35"

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Low to Moderate

Humidity

Low to Moderate

Lifespan

Perennial

Native To

Australia, New Zealand

Toxicity

Non-toxic

Bloom period

Late spring – Summer

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F
M
A
M
J
J
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In flower about 4 months of the year

Planting

How to Grow

  1. Select a planting site in full sun with gritty, sandy, or rocky soil that drains rapidly.
  2. Dig a shallow hole matching the depth of the root ball and gently press the plant into place.
  3. Water sparingly but regularly until the roots establish, ensuring the surrounding soil never remains soggy.
  4. Protect the plant with afternoon shade in regions experiencing intense, high-humidity summer heat.

Pro Tip

Provide exceptionally sharp drainage in a rockery or gravel bed; standing water or heavy, wet winter soils will rapidly rot the dense root system.

Keep It Thriving

Care Guide

Do

  • Grow in highly porous, gravelly soil mixes to ensure rapid drainage.
  • Water during prolonged dry spells to prevent the dense cushion from drying out completely.
  • Clear away any fallen leaves or debris from the top of the mat to prevent rot.

Don't

  • Do not plant in heavy clay or low-lying areas where water pools.
  • Do not apply heavy fertilizers, which cause the tight cushion to become loose and open.
  • Do not cut back hard into the old, woody interior as it will not regenerate.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Pest Check
Plant
Propagate
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Rock gardensCrevice plantingsTrough gardensPath edgings

Multiply

Propagation Methods

Good to Know

Common Questions

Australian Astroturf questions

What zones can Australian Astroturf grow in?

Australian Astroturf is hardy in USDA Zones 8–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Australian Astroturf bloom?

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

Does Australian Astroturf need full sun?

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

Is Australian Astroturf drought tolerant?

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

Keep exploring

Grow Australian Astroturf 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.