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Callistemon 'Red Alert'

Callistemon 'Red Alert' is a compact evergreen shrub admired for its brilliant red bottlebrush flowers that appear from spring into summer. The vivid blooms create a bold splash of colour against fine green foliage and attract birds to the garden. Well suited to New Zealand conditions, this hardy and reliable variety adds strong visual impact, making it ideal for borders, low hedging, and sunny feature plantings.

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The average plant height is 30cm.
$26.93
The average plant height is 180cm.

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Suited to regions:All regions
Plant type:Shrubs
Height:2.00 m
Spread:2.00 m
Flowering time:
Tolerances:Coastal, Extended dry periods, Hardy, Wind
Garden uses:Hedging, Living areas, Pool areas
Garden styles:Alpine, Backyard, City & Courtyard, Coastal, Formal, Frontyard, Japanese, Mediterranean, Modern
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known as
Sku17254

How to grow Callistemon 'Red Alert' in NZ

Callistemon 'Red Alert' thrives in full sun and well drained soil. It tolerates a range of soil types including sandy and coastal sites, provided drainage is good. Choose a sheltered position in colder regions of NZ to protect from heavy frost while young. Water regularly during establishment to encourage strong root development. Once established, this variety is hardy and copes well with dry summer conditions.

Callistemon 'Red Alert' care tips

Callistemon 'Red Alert' is easy care once established. Water during extended dry periods, especially in its first year. Apply mulch around the base to retain moisture and suppress weeds, keeping it clear of the trunk. Light pruning after flowering will help maintain a tidy compact shape and encourage further blooming. Feed in spring with a general garden fertiliser to promote healthy growth and vibrant flowers.

Callistemon 'Red Alert' size, spacing, and growth rate

Callistemon 'Red Alert' typically grows to around 1.5 to 2 metres tall and wide in NZ conditions. It forms a dense bushy shrub that is well suited to low hedging and border planting. Space plants approximately 1 to 1.5 metres apart to allow for airflow and mature growth. The growth rate is moderate, with steady development when planted in full sun and well drained soil.

Landscaping uses for Callistemon 'Red Alert'

Callistemon 'Red Alert' is ideal for low hedges, sunny borders, and feature planting in smaller gardens. The bright red flowers provide eye catching colour and attract birdlife, enhancing wildlife friendly landscapes. It works well in coastal gardens and modern designs where bold colour is desired. This variety can also be grown in large containers for patios and outdoor entertaining areas.

Why buy Callistemon 'Red Alert' from The Plant Company?

The Plant Company is NZ’s most trusted plant nursery, supplying premium quality plants grown for local conditions. When you purchase Callistemon 'Red Alert' from The Plant Company, you receive a healthy, well established plant ready to thrive in your garden. Our team provides expert advice, careful packaging, and reliable nationwide delivery, ensuring confidence and excellent value with every purchase.

Questions and Answers

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