Bisherige Pflanze der Woche - die Küsten-Banksie
Banksia integrifolia L.f.
In the container plant section, the striking, cylindrical inflorescences of the coastal banksia (Banksia integrifolia L.f.) are currently attracting a lot of attention.
It belongs to the Proteaceae family, which is found exclusively in the Southern Hemisphere. In the wild, this evergreen tree or shrub can grow up to 20 meters tall. The Latin species name“integrifolia”means “whole leaf” and refers to its characteristic entire-margined leaves.
Banksia integrifolia is found in eastern Australia, where it is widespread on sandy soils along the coast as well as in mountainous regions. The species is considered hardy and can help protect against coastal erosion.
Its pollen- and nectar-rich inflorescences are an important food source for Australian wildlife. Among others, flower bats, various species of nectar-eaters, and insects feed on them. We previously explored the fascinating floral biology of the Banksias in more detail in a 2020 “Plant of the Week” feature (Banksia serrata).
Only months after flowering do the impressive inflorescences develop into cone-like structures with extremely hard, leathery capsules that can persist for a long time. This makes them perfectly adapted to their habitat, as regular bushfires and wildfires are part of the natural cycle in Australia. As so-called fire plants (pyrophytes), most Banksias require exposure to fire to release their seeds. They can then germinate well in the fertile ash. The fruits of Banksia integrifolia open within a year of ripening, even without exposure to fire.
Cockatoos, too, are able to crack open the fruits with their powerful beaks. The nutritious seeds are an important food source for them.
(Week 38/2026)