shrub

Round-leaved Tea Tree, Round Leaf Tea-tree

The Story

Plant Bio

Leptospermum rotundifolium, the round-leaved tea tree, is an evergreen Australian shrub native to the sandstone-derived soils of coastal and tableland New South Wales. It develops a slender, spreading form with gnarled bark on mature stems and long, arching branches that provide effective ground cover.

This species is distinguished by its circular, highly aromatic leaves and unusually large flowers that reach up to thirty millimetres in diameter. The blooms range from white to deep pink and lavender, featuring a prominent green central disc surrounded by upright stamens.

Uses & Benefits:

Produces exceptionally large, showy pink-to-lavender flowers against small, neat, aromatic foliage.

Functions as an effective windbreak, soil binder, or salt-tolerant coastal barrier.

Provides a valuable nectar source for native bees, butterflies, and other beneficial insects.

Essentials

At a Glance

Plant Type

Shrub

Height

118 inches

Width

118 inches

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

Low to high

Lifespan

10-20 years

Native To

New South Wales, Australia

Toxicity

Non-toxic

Bloom period

Mid spring – Late spring

In flower about 2 months of the year

Planting

How to Grow

Select a planting site in full sun to partial shade with highly permeable sandy, loamy, or clay soil.
Dig a hole twice the width of the root ball and position the plant at the same depth as its nursery container.
Water thoroughly immediately after planting, and maintain minimal supplementary watering once the root system is established.
Apply a light layer of organic mulch around the base, keeping it clear of the main stem to prevent collar rot.

Pro Tip

Always prune within the green foliage zone immediately after flowering; cutting back into bare wood prevents regeneration because the stems lack dormant buds.

Keep It Thriving

Care Guide

Do

Tip-prune regularly after flowering to maintain a dense, compact habit.
Ensure the soil is highly permeable to prevent root rot pathogens.
Use low-phosphorus native fertilisers if supplementary feeding is required.

Don't

Do not cut back into old, leafless wood as the plant will fail to shoot.
Do not allow water to pool around the root zone in heavy clay soils.
Do not fertilise heavily with standard phosphorus-rich garden feeds.

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

Coastal gardensRockeriesWindbreaksNative shrubberiesGround cover

Companion Plants

Banksia ericifolia Grevillea speciosa Correa reflexa Crowea saligna

Multiply

Propagation Methods

Good to Know

Common Questions

Round-leaved Tea Tree, Round Leaf Tea-tree questions

What zones can Round-leaved Tea Tree, Round Leaf Tea-tree grow in?

Round-leaved Tea Tree, Round Leaf Tea-tree 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 Round-leaved Tea Tree, Round Leaf Tea-tree bloom?

Round-leaved Tea Tree, Round Leaf Tea-tree typically blooms in mid spring through late spring. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Round-leaved Tea Tree, Round Leaf Tea-tree need full sun?

Round-leaved Tea Tree, Round Leaf Tea-tree does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Round-leaved Tea Tree, Round Leaf Tea-tree drought tolerant?

Yes — once established (usually after the first full season), Round-leaved Tea Tree, Round Leaf Tea-tree handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.