Species

Callistemon viminalisWeeping Bottlebrush

1 other cultivar

‘Slim’Slim Bottlebrush

shrub

Red Cluster Weeping Bottlebrush

Callistemon viminalis 'Red Cluster'

$36.99

The Story

Plant Bio

Callistemon, or Bottlebrush, are evergreen shrubs or small trees native to Australia, famed for their cylindrical, brush-like flower spikes. They are heat and drought-tolerant plants ideal for warm climates.

'Red Cluster' is a popular cultivar known for its weeping habit and profuse clusters of brilliant red, bottlebrush-like flowers. It often blooms repeatedly throughout the year in mild climates, attracting hummingbirds.

Uses & Benefits:

Provides a spectacular floral display with its unique, vibrant red bottlebrush flowers and graceful weeping form. It serves as an excellent specimen plant or informal screen.

Its high drought and salt tolerance make it a superb choice for xeriscaping, Mediterranean-style gardens, and coastal landscapes where other plants might struggle.

The nectar-rich flowers are a magnet for hummingbirds, bees, and butterflies, providing a vital food source and adding life and movement to the garden.

SpeciesCallistemon viminalisWeeping Bottlebrush

Essentials

At a Glance

Plant Type

Shrub

Height

180 inches

Width

180 inches

Light

Full Sun

Zones

9, 10

Water

Low once established

Humidity

Low to moderate

Lifespan

Long-lived shrub

Native To

Australia

Toxicity

Non-toxic

Bloom period

Late spring – Mid-summer

In flower about 3 months of the year

Marketplace

Where to Buy

Plants By Mail

1+ Gal Pot

In Stock$36.99

Fast Growing Trees

In Stock$44.95

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

Select a location in full sun with excellent soil drainage.
Dig a hole twice as wide as the root ball but no deeper.
Gently tease out any circling roots before planting.
Set the plant at the same depth it was in the container.
Backfill with native soil and water deeply to settle.
Mulch to conserve water, keeping it away from the trunk.

Pro Tip

Prune lightly after the main flowering flush, just behind the spent blooms, to encourage denser growth and more flowers.

Keep It Thriving

Care Guide

Do

Provide full sun for best flowering.
Water deeply but infrequently once established.
Use a low-phosphorus fertilizer suitable for Australian natives.
Prune after flowering to maintain shape.

Don't

Do not plant in heavy, wet clay soil.
Avoid high-phosphorus fertilizers, which can be toxic to them.
Do not prune heavily into old, non-leafy wood.
Avoid planting in shady areas.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Striking flowering specimen treeArchitectural screen or informal hedgeHummingbird garden centerpiece

Companion Plants

Leucadendron Grevillea Agave Lantana Westringia fruticosa

Multiply

Propagation Methods

Good to Know

Common Questions

Red Cluster Weeping Bottlebrush questions

What zones can Red Cluster Weeping Bottlebrush grow in?

Red Cluster Weeping 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 Red Cluster Weeping Bottlebrush deer resistant?

Not reliably. Deer may browse Red Cluster Weeping Bottlebrush, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Red Cluster Weeping Bottlebrush bloom?

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

Does Red Cluster Weeping Bottlebrush need full sun?

Red Cluster Weeping Bottlebrush does best in full sun (6+ hours).

Is Red Cluster Weeping Bottlebrush drought tolerant?

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