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Callistemon Mary Mackillop

Callistemon Mary Mackillop is a large shrub grown for its bottlebrush like flowers and attractive foliage. Masses of the crimson-coloured flowers and produced through spring and summer, turning the plant into a mass of vibrant colour. The dark green foliage is held with a pendulous manner and complements the flowers nicely as it grows to 2.2 m tall and 1.8 m wide. Callistemon Mary Mackillop is commonly used for screening and shelter, grown as a specimen, included in a mixed planting, or clipped into a hedge.

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Callistemon Mary Mackillop is currently unavailable, but we do have other other amazing species and varieties of Callistemon available.

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Why? Our plants are subject to seasonality and high-demand. Please contact us if you would like to know when it becomes available again.

Suited to regions:All regions
Plant type:Shrubs
Height:2.20 m
Spread:1.80 m
Flowering time:Spring, Autumn
Tolerances:Coastal, Extended dry periods, Hardy
Garden uses:Hedging, Living areas, Parks, Specimen
Garden styles:Alpine, Backyard, City & Courtyard, Coastal, Formal, Frontyard, Modern
Easy to grow?Yes
Maintenance requirementsLow
Growth rateMedium
Also known as

How to grow Callistemon Mary Mackillop

Callistemon 'Mary Mackillop' (Bottlebrush) is a hardy, evergreen shrub known for its vibrant pinkish-red flowers that attract birds and bees. It thrives best in full sun and well-draining soil. To plant it, choose a location with at least 6 hours of direct sunlight daily. Dig a hole twice as wide as the root ball and just as deep. Place the plant in the hole, backfill with soil, and water thoroughly to settle it. Regular watering is important during the first growing season to establish a strong root system. Once established, 'Mary Mackillop' is drought-tolerant but will flower better with occasional deep watering, especially during dry periods. Prune lightly after flowering to maintain shape and encourage bushiness. Fertilize in spring with a low-phosphorus fertilizer suitable for natives. It can tolerate light frosts and is excellent for coastal gardens, hedging, or as a feature plant.

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