Callistemon viminalis 'Slim'
shrub

Slim Bottlebrush

Callistemon viminalis 'Slim'

$50.95
Expertly Curated
Real-Time Pricing
Loved by Designers

Essentials

At a Glance

Plant Type

Shrub

Height

108 inches

Width

54 inches

Light

Full Sun

Zones

8, 9

Water

Low to Medium

Humidity

Low to High

Lifespan

Long-lived evergreen shrub

Native To

Australia (cultivar)

Toxicity

Non-toxic

The Story

Plant Bio

Callistemon viminalis, or Weeping Bottlebrush, is an evergreen shrub or small tree from Australia, famous for its brilliant red, brush-like flower spikes. It has a graceful, often weeping habit. 'Slim' is a unique, narrow, columnar cultivar perfect for tight spaces. It is a heavy bloomer, producing masses of classic red bottlebrush flowers from spring through fall and requires little pruning.

Bloom Period:

J
F
M
A
M
J
J
A
S
O
N
D
EarlyLate

Uses & Benefits:

Ornamental UsesThe 'Slim' bottlebrush offers a unique vertical element for sunny, warm-climate gardens. Its narrow form is perfect for tight spaces, while the brilliant red flowers provide a long season of tropical color and attract hummingbirds.
Practical UsesIts columnar shape makes it an excellent choice for a formal accent, a narrow screen, or for flanking doorways and entrances. It is also well-suited for large containers on patios or decks.
Ecological BenefitsThe nectar-rich flowers are a vital food source for hummingbirds, bees, and other pollinators. The dense evergreen foliage provides shelter for birds.

Marketplace

Where to Buy

In Stock$50.95

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

  1. Plant in a location that receives at least 6 hours of direct sun daily.
  2. Ensure the soil is well-drained; amend with grit if necessary.
  3. Dig a hole twice the width of the pot.
  4. Set the plant in the hole, ensuring the root flare is at soil level.
  5. Backfill with soil and water deeply to settle.
  6. Water regularly for the first year; it is drought tolerant once established.

Pro Tip

Use a low-phosphorus fertilizer; like many Australian plants, Callistemon can be sensitive to high levels of phosphorus.

Keep It Thriving

Care Guide

Do

  • Provide full sun for maximum flowering.
  • Water deeply but infrequently once established.
  • Mulch to conserve moisture and suppress weeds.
  • Deadhead spent flowers to encourage reblooming, though not always necessary.

Don't

  • Do not plant in shade; it will become leggy and flower poorly.
  • Avoid planting in poorly drained, constantly wet soils.
  • Do not use high-phosphorus fertilizers.
  • Avoid heavy pruning into old, bare wood.

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Pest Check
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Narrow vertical accentFlowering privacy screenUnique container specimen

Companion Plants

Agapanthus Lantana Salvia leucantha Westringia fruticosa Leucadendron

Multiply

Propagation Methods

Good to Know

Common Questions

Slim Bottlebrush questions

What zones can Slim Bottlebrush grow in?

Slim Bottlebrush 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 Slim Bottlebrush deer resistant?

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

When does Slim Bottlebrush bloom?

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

Does Slim Bottlebrush need full sun?

Slim Bottlebrush does best in full sun (6+ hours).

Is Slim Bottlebrush drought tolerant?

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

Keep exploring

Grow Slim Bottlebrush with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.

Download Sow on the App StoreGet Sow on Google Play