shrub

Round-leaved Tea Tree

The Story

Plant Bio

Leptospermum rotundifolium, the round-leaved tea tree, is an evergreen Australian shrub reaching five to ten feet in height with a dense, arching habit and gnarled mature bark. The small, thick, circular leaves are dark green, slightly shiny, and release an aromatic scent when bruised.

This species produces exceptionally large flowers for the genus, measuring up to an inch and a quarter across with five rounded petals surrounding a prominent green center. The blooms range from white to deep mauve and appear singly on short lateral stems in late spring.

Uses & Benefits:

Features exceptionally large pink or white flowers and a picturesque, arching habit with gnarled mature bark.

Offers excellent wind and salt tolerance, making it ideal for second-line coastal stabilization.

Provides nectar and pollen for bees, butterflies, and other beneficial insects.

Essentials

At a Glance

Plant Type

Shrub

Height

120"

Width

120"

Light

Full Sun, Partial Sun

Zones

8, 9, 10

Water

Low

Humidity

Moderate

Lifespan

Long-lived

Native To

Australia

Toxicity

Non-toxic

Bloom period

Late spring – Early summer

In flower about 2 months of the year

Planting

How to Grow

Select a planting site in full sun with highly permeable, sandy, or sandstone-derived soil.
Dig a hole twice as wide as the root ball but no deeper, ensuring the crown sits slightly above the surrounding soil level to facilitate drainage.
Water deeply and regularly during the first summer to establish a deep root system, then reduce watering to a minimum.
Apply a low-phosphorus, slow-release fertilizer formulated for native plants sparingly in early spring.

Pro Tip

Prune lightly immediately after flowering to maintain a dense shape; cutting back past the green foliage line into bare, old wood prevents the stem from shooting back.

Keep It Thriving

Care Guide

Do

Plant in a position with excellent air circulation to prevent powdery mildew.
Prune lightly immediately after the spring flowering flush.
Use only low-phosphorus fertilizers to avoid root toxicity.

Don't

Do not plant in heavy, boggy soils without incorporating sand or raising the planting bed.
Do not cut back into old, leafless wood, as it will not regenerate.
Do not overwater once established, as wet roots invite fatal rot.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Specimen plantingCoastal gardensWindbreaksRock gardens

Companion Plants

Westringia fruticosa Cistus Ceanothus Rosmarinus officinalis

Multiply

Propagation Methods

Good to Know

Common Questions

Round-leaved Tea Tree questions

What zones can Round-leaved Tea Tree grow in?

Round-leaved Tea Tree 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.

Is Round-leaved Tea Tree deer resistant?

Not reliably. Deer may browse Round-leaved Tea Tree, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Round-leaved Tea Tree bloom?

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

Does Round-leaved Tea Tree need full sun?

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

Is Round-leaved Tea Tree drought tolerant?

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