Species

Callistemon citrinusCrimson Bottlebrush

5 other cultivars

shrub

Endeavour Bottlebrush

Callistemon citrinus 'Endeavour'

The Story

Plant Bio

Callistemon citrinus, the crimson bottlebrush, is an evergreen Australian shrub with narrow, leathery leaves that release a distinct lemon scent when crushed. The flowers feature dense, cylindrical spikes of bright red stamens held at the branch tips, appearing in flushes from spring through summer.

'Endeavour' is a compact, densely bushy cultivar that grows as an upright shrub filling in thickly from ground level. It is distinguished by its brilliant crimson-red flower spikes and coppery-bronze new spring growth that matures to deep green.

Uses & Benefits:

Brilliant crimson-red flower spikes and coppery-bronze new spring growth provide strong visual interest.

Aromatic foliage oils deter deer and rabbits, making it an excellent choice for low-maintenance hedges.

Nectar-rich flowers attract hummingbirds, bees, and other beneficial pollinators.

SpeciesCallistemon citrinusCrimson Bottlebrush

Essentials

At a Glance

Plant Type

Shrub

Height

157"

Width

118"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Low

Humidity

High

Lifespan

Long

Native To

Australia

Toxicity

Non-toxic

Bloom period

Spring – Summer

In flower about 6 months of the year

Planting

How to Grow

Select a planting site in full sun to partial shade with well-drained soil.
Dig a hole twice as wide as the root ball and of equal depth.
Gently remove the plant from its container, place it in the hole, and backfill with soil.
Water thoroughly to settle the soil, then apply a layer of organic mulch to retain moisture.

Pro Tip

Prune just behind each spent brush; cutting further back into old bare wood gives slow, patchy regrowth.

Keep It Thriving

Care Guide

Do

Prune lightly immediately after flowering to encourage a dense, bushy habit.
Water regularly during the first year to establish a deep root system.
Use a low-phosphorus, slow-release fertilizer sparingly in spring.

Don't

Do not prune heavily into old, bare wood that lacks active growth buds.
Avoid over-fertilizing with high-phosphorus general-purpose garden blends.
Do not allow container-grown plants to sit in waterlogged soil.

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

HedgePrivacy ScreenContainer PlantingCoastal Garden

Companion Plants

Salvia Rosmarinus Lantana

Multiply

Propagation Methods

Good to Know

Common Questions

Endeavour Bottlebrush questions

What zones can Endeavour Bottlebrush grow in?

Endeavour Bottlebrush 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.

Is Endeavour Bottlebrush deer resistant?

Yes — Endeavour Bottlebrush is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Endeavour Bottlebrush bloom?

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

Does Endeavour Bottlebrush need full sun?

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

Is Endeavour Bottlebrush drought tolerant?

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