Callistemon pityoides Widdicombe Gem - Bottlebrush

Callistemon pityoides 'Widdicombe Gem' (formerly Callistemon sieberi 'Widdicombe Gem') is a variety of bottlebrush that is particularly interesting, especially for its cold resistance. It displays the usual pendulous brush-like flowers of this type of Australian bush, but in a pale yellow colour, which is quite unique. The flowering lasts a long time and occurs from April to August depending on the region. This variety is capable of withstanding temperatures down to about -12°C, depending on the growing conditions. The bush, of medium size, is easily recognizable outside of the flowering period by its very fine leaves resembling those of a willow. It should be planted in full sun to enjoy abundant flowering and help it withstand the winter. In climates that are too harsh, it will be grown in a container to be sheltered during periods of frost.

The bottlebrushes are representatives of the Myrtaceae family, like eucalyptus, Melaleucas, Feijoas, and of course, myrtles. All these bushes or trees have a strong family resemblance when it comes to their spectacular flowering, due to the size of their stamens. In fact, the name Callistemon comes from the Greek words kallistos (magnificent) and stemon (stamens), which is a good summary of the ornamental interest of these plants. Native to Australia, Callistemons love the sun, which promotes their flowering.

Callistemon pityoides 'Widdicombe Gem' has a compact habit, reaching about 1.50m (4ft 11in) in 10 years with a width of 80cm (31.5in) to 1m. It therefore has a relatively slow growth, making it a good plant for small gardens or container cultivation. With its spiky appearance, it displays small branches in all directions, which particularly highlights its beautiful flowering. The leaves are very narrow, a sign of adaptation to the dryness of its country of origin, but it will flower better if watered during the summer. The brush-like flowers, about ten centimetres long, are made up of protruding pale yellow stamens. Carried by the tips of the branches, the flowers are thus clearly visible on the periphery of the lush green foliage. Their unique design is very spectacular and brings a touch of exoticism to the garden.
Its hardiness allows it to be planted well beyond Mediterranean or Atlantic coastal areas, which are the preferred habitats of other varieties of bottlebrushes. This one is tough, a real strong one, and you can acclimatize it in most parts of the country! In the east or at higher altitudes, planting it in a container will allow you to enjoy its remarkable aesthetics without taking too much risk. Just overwinter it in a cool place (sufficiently bright garage or other) during periods of severe cold.

As the ultimate graphic plant, this Callistemon 'Widdicombe Gem' will find its place in a contemporary garden, highlighting architectural features and typical flowering. In temperate to cool climatic zones, its exotic appearance will also make it suitable for themed gardens, where it will accompany other distinctive plants, evoking distant lands. It can be associated with the very pretty hardy palm tree Trachycarpus wagnerianus, with a more compact habit and leaves than the classic T. fortunei, the well-known Yucca rostrata with its beautiful slender blue leaves, or the pads of Opuntia engelmanii. As for perennials, Tritoma will be a perfect companion, as well as Asphodelus lutea.