Callistemon sieberi Common / Product Name: River Bottlebrush
Genus Species: Callistemon sieberi
Common / Product Name: River Bottlebrush
Habit: SMALL TREES (ST)
Height x Width: 3 – 10m x canopy 2 – 6m
Pruning: None Light
Frost Tolerance: High
Clay & Heavy Soil Tolerance: Adaptable
Coastal Tolerance: Low
Drought Tolerance: Medium
Origin: Australian Plant
Flowering: starts: Spring / ends: Summer
Flower Colour: Cream
Irrigation: No watering required once established if planted in suitable conditions. Will require water over long 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, supplement with iron to prevent yellowing of leaves.
Environment: Plants selected suitable for Melbourne surrounds and southern states of Australia.