shrub

Tasmanian waratah, Tassie waratah

The Story

Plant Bio

Telopea truncata, the Tasmanian waratah, is an erect, multi-stemmed evergreen shrub endemic to the moist, acidic soils of Tasmania's mountain forests. It develops an underground lignotuber and features stiff, leathery, deep green leaves up to ten centimetres long.

Unlike the New South Wales waratah, this species bears loose terminal clusters of ten to thirty-five rich crimson-red tubular flowers that lack large, showy surrounding bracts. Young branchlets, unopened flower buds, and new foliage are coated in a distinctive rusty-brown down.

Uses & Benefits:

Produces terminal clusters of rich crimson-red flowers and features deep green, leathery foliage.

Provides high-quality cut flowers and is well-suited to cool-climate, acidic woodland gardens.

Attracts nectar-feeding native birds, such as honeyeaters, and native insects.

Essentials

At a Glance

Plant Type

Shrub

Height

118 inches

Width

98 inches

Light

Full Sun, Partial Sun

Zones

8, 9

Water

Consistent

Humidity

Low

Native To

Tasmania, Australia

Toxicity

Non-toxic

Bloom period

Late spring – Summer

In flower about 3 months of the year

Planting

How to Grow

Select a planting site with exceptional drainage, such as an elevated bed or slope, containing acidic sandy loam or organic forest soil.
Position the plant where it receives full sun to dappled afternoon shade, ensuring protection from severe summer heat.
Water regularly during the establishment phase and dry spells to maintain consistent soil moisture without waterlogging.
Apply a slow-release, low-phosphorus native fertiliser once a year in spring to support growth without damaging the sensitive root system.
Prune the spent flowering stems back by half to two-thirds immediately after flowering to maintain a dense, bushy habit.

Pro Tip

Unlike other waratahs that require hot, dry northern exposures, this mountain species demands cool, moist conditions, afternoon shade in warmer zones, and strict protection from phosphorus-heavy fertilisers.

Keep It Thriving

Care Guide

Do

Provide exceptional soil drainage to prevent root rot.
Prune hard immediately after flowering to prevent legginess.
Use only low-phosphorus fertilisers formulated for native plants.
Maintain consistent soil moisture during dry summer periods.

Don't

Do not allow the soil to dry out completely or bake in severe summer heat.
Do not prune deep into old, leafless wood that lacks dormant buds.
Do not disturb the shallow surface roots with heavy cultivation or deep weeding.
Do not plant in heavy clay or waterlogged soils.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Specimen plantingUnderstory plantingNative gardensCut flower production

Multiply

Propagation Methods

Good to Know

Common Questions

Tasmanian waratah, Tassie waratah questions

What zones can Tasmanian waratah, Tassie waratah grow in?

Tasmanian waratah, Tassie waratah is hardy in USDA Zones 8–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Tasmanian waratah, Tassie waratah bloom?

Tasmanian waratah, Tassie waratah 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 Tasmanian waratah, Tassie waratah need full sun?

Tasmanian waratah, Tassie waratah does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.