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Callistemon hybrid     Common / Product Name: Harkness

Genus Species: Callistemon hybrid    

Common / Product Name: Harkness


Available Sizes

Height x Width: 4 – m x 3 – 5m

Pruning:   Light

Frost Tolerance:   High

Clay & Heavy Soil Tolerance:   Adaptable

Coastal Tolerance:   Medium

Drought Tolerance:   Medium

Origin:   Australian Plant

Evergreen:   Yes

Flowering:  starts: Late Spring / ends: Early Summer

Flower Colour:   Crimson/Red

Irrigation:   Yes requires spring watering for best flowers, water during dry periods

Lower Temperatures: Temperatures as low as -7°C for short periods once established. Some frost damage below -3°C on foliage.

Upper Temperatures: Temperatures in the Low 40’s°C will tolerate higher temperatures for short periods.

Fertilising: Slow release low phosphorus fertilizer.

Environment:   Plants selected suitable for Melbourne surrounds and southern states of Australia.

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