The crimson bottlebrush, or Callistemon citrinus, is a shrub to small tree, with bright red flowers that reaches roughly two metres tall. It is a common species along the east coast of Australia, from Victoria in the south to Queensland in the north. It’s common to more coastal areas in swampy heathland and rocky creek banks. The common name comes from the colour of the flowers. The binomial name, Callistemon citrinus, has the following meanings:

• Callistemon-from the Greek word kallistos which means beautiful
• Citrinus-a Latin word that means lemon yellow or like citrus. For this species, it means like citrus, because the leaves have a lemon scent when crushed.

The leaves are like many native plants found in Australia, in that they are stiff and hard. They are also flat with a sharp point at the end and reach up to seven centimetres long by one centimetre wide. New growth is flesh-coloured and continues to grow beyond the end of the flowers. They are arranged in whorls around the stems. The leaves have a lemon scent when they are crushed. They also have obvious venation and glands.

The flowers are a spike that reaches between five and twelve centimetres long and five centimetres wide. The flowers appear in spring and summer in large numbers over the whole shrub. The filaments are crimson in colour, are sometimes (but rarely) red-purple or lilac) and have dark anthers. Flowers are followed by globular capsules to seven millimetres in diameter. The flowers attract bees and birds due to the nectar contained within the flowers. This is one of the reasons why I love this shrub/tree-along with the bright red colour, of course!

Within a garden, the crimson bottlebrush is a great choice in any Australian garden. It’s happy in temperate and sub-tropical gardens, while being frost tolerant. While being great in boggy soil, the crimson bottlebrush is able to tolerate dry soil and anything in between.

The crimson bottlebrush is also a useful plant for several reasons. As well as attracting birds and bees due to the nectar within the flowers, it is also used by birds as a nesting plant. As it is tolerant of pollution, it is useful in urban settings where there is space for a shrub/tree of up to three metres tall and wide. It is also useful as an aid in erosion control.

One thing I always ask myself is would I have this plant in my garden, if I had the space? With the crimson bottlebrush, the answer is a definite yes. I love the bright red flowers, the leaves are lovely too and it’s good looking. The flowers are so cheerful within the landscape, no matter where they are. The fact that the shrub is also helpful to local wildlife is another bonus for me.