Callistemon ‘Slim’ – Narrow Bottlebrush for Modern Gardens
Botanical Name: Callistemon viminalis ‘CV01’ - PBR protected
Common Name: Slim Bottlebrush
Origin: Australia
Callistemon ‘Slim’ is the ultimate narrow-growing bottlebrush, perfect for modern gardens, small courtyards, narrow side yards, and tight landscape spaces across Toowoomba. With its naturally columnar shape, brilliant red bird-attracting flowers, and exceptional resilience to heat, frost, and drought once established, ‘Slim’ is an outstanding choice for local home gardeners wanting screening without the bulk.
This compact Australian native combines year-round evergreen foliage with repeat flushes of vibrant red blooms, making it highly suited to Toowoomba’s warm summers, cool winters, and variable rainfall patterns.
🌱 Key Features
Ultra-narrow habit - Grows approx. 3m tall and just 1.3m wide, ideal for tight garden beds or boundary planting.
Striking red bottlebrush flowers that attract lorikeets, honeyeaters, butterflies, and beneficial insects.
Excellent screening choice where space is limited - no need for constant pruning to maintain shape.
Exceptional toughness - Withstands Toowoomba frost, heat, light drought, and urban conditions.
Low maintenance - Light trimming after flowering encourages density and even more blooms.
Australian native - Perfect for local wildlife gardens and sustainable landscaping.
📏 Size & Form
Height: ~3 metres
Width: ~1.2-1.3 metres
Growth Habit: Tall, slender, upright, naturally tight columns of foliage
🌼 Flowering & Foliage
Flowering: Prolific red bottlebrushes from late spring to autumn, with spot blooms outside these periods in favourable conditions
Foliage: Dense, fine, mid-green foliage that remains lush year-round
Attracts: Local birdlife, including lorikeets and native honeyeaters common across Toowoomba suburbs
🌤 Toowoomba Growing Conditions
Callistemon ‘Slim’ thrives in the Toowoomba region thanks to its adaptability and resilience.
Climate Suitability: Handles warm summers, cool winters, and local frost
Sunlight: Prefers full sun but tolerates partial shade
Soil: Works well in Toowoomba’s diverse soil types - including clay-based, sandy, and loamy soils - provided drainage is reasonable
Watering: Low water requirements once established; responds well to deep, infrequent watering
Frost Tolerance: Excellent - ideal for Toowoomba’s colder winter mornings
🌿 Best Uses in Toowoomba Gardens
Narrow boundary screening along fences or between houses
Side passageway planting where width is limited
Modern, structured landscapes requiring vertical accents
Wildlife-friendly native gardens
Container planting in large pots for patios and courtyards
Driveway or path lines where a neat, upright form is essential
🌱 Planting & Care
Planting Tips:
Dig a hole twice as wide as the root ball
Blend in quality native plant fertiliser or organic compost
Water in deeply to help establish strong roots
Ongoing Care:
Pruning: Light trim after flowering to maintain shape
Feeding: Apply a low-phosphorus native fertiliser in spring
Mulching: 5-7cm of mulch helps retain moisture and suppress weeds
Watering: Deep water during establishment; drought-tolerant afterward
🛒 Why Buy Callistemon ‘Slim’ from True Blue Garden Centre?
Locally grown plants suited to Toowoomba’s climate
Expert staff available to help with planting advice
Healthy, premium-quality stock
Perfect for modern, narrow and wildlife-friendly gardens
📦 Availability
Available now at True Blue Garden Centre, Toowoomba.
Stock levels vary - secure yours early for seasonal planting.
