shrub

Clustered Bush-Pea

The Story

Plant Bio

Pultenaea dentata, commonly known as the clustered bush-pea, is an open, sprawling evergreen shrub native to the damp heathlands and swamp margins of southeastern Australia. It produces dense terminal heads of bright yellow pea-flowers marked with red and purple, set against narrow, dark green leaves with incurved margins.

This species is distinguished by its low-lying, finely ribbed stems and the prominent tooth-like, dark brown stipular bracts that surround the flower clusters. It thrives in consistently moist, acidic, sandy or peaty soils that mimic its native wetland-margin habitats.

Uses & Benefits:

Produces a bright spring display of yellow and red pea-flowers against fine, dark green foliage.

Excellent for stabilizing damp, sandy soils on sloped margins where drainage is good.

Provides a valuable source of pollen and nectar for small insect pollinators.

Essentials

At a Glance

Plant Type

Shrub

Height

31"

Width

39"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Medium

Humidity

Moderate to High

Lifespan

Short to Medium

Native To

Australia

Toxicity

Non-toxic

Bloom period

Spring

In flower about 3 months of the year

Planting

How to Grow

Select a planting site with full sun to partial shade and highly acidic, sandy, loamy, or peaty soil.
Ensure the soil remains consistently moist but provides excellent sub-surface drainage to prevent root rot.
Apply a specialized, slow-release native plant fertilizer with low phosphorus levels in early spring.
Prune the branch tips lightly after the spring flowering period to prevent the habit from becoming leggy.

Pro Tip

Prune lightly immediately after spring flowering to maintain a compact shape; cutting back into old, leafless wood prevents the plant from reshooting.

Keep It Thriving

Care Guide

Do

Keep the soil consistently moist, especially during dry summer spells.
Use only low-phosphorus fertilizers formulated specifically for Australian native plants.
Provide excellent drainage to protect the root system from standing water.

Don't

Do not allow the root zone to dry out completely, as the plant has low drought tolerance.
Never prune hard into old, bare wood, as it lacks dormant buds to regenerate.
Avoid using standard general-purpose garden fertilizers containing high phosphorus.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pest Check
Propagate
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Rock gardensDamp bordersContainer specimensRain garden margins

Companion Plants

Banksia spinulosa Epacris impressaPatersonia occidentalis

Multiply

Propagation Methods

Good to Know

Common Questions

Clustered Bush-Pea questions

What zones can Clustered Bush-Pea grow in?

Clustered Bush-Pea 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.

When does Clustered Bush-Pea bloom?

Clustered Bush-Pea typically blooms in spring through spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Clustered Bush-Pea need full sun?

Clustered Bush-Pea does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.