Grevillea x semperflorens: is a member of the Proteaceae family. This interesting hybrid is a cross between Grevillea thelemanniana and Grevillea juniperina subspecies sulphurea. The hybrid was developed by Miss F. E. Briggs of Plymouth, England in 1926 or 1927.
As far as we know this is only one of two hybrid Grevilleas that has been given a Latin-based name. Semper means always and florens means flowering. The name refers to the long flowering period. Grevillea x gaudichaudii is the other hybrid with a Latin name. This is a naturally occurring hybrid from the upper Blue Mountains of New South Wales.
Grevillea x semperflorens is a shrub that may reach a height of two metres and has pendulous branches. The leaves are usually divided into a small number of segments and are up to 45 millimetres long.
Flowers may be terminal or carried in leaf axils. They are orange-yellow and red. As the hybrid name implies, flowering extends over a lengthy period. Honeyeaters are attracted to the blooms.
The information about the history of this cultivar was gleaned from Banksias, Waratahs, Grevilleas & All Other Plants in the Australian Proteaceae Family by Wrigley & Fagg, published by Collins Australia. This is a very useful reference book that is in constant use at Yallaroo.
Wrigley & Fagg also note that Grevillea x semperflorens is not available in Australia. This may have been the case in 1989 when their book was published. Last year we bought a plant that had been propagated by Mole Station Native Plant Nursery near Tenterfield in northern New South Wales.
Propagate Grevillea x semperflorens from cuttings that strike readily.