Alcantarea imperialis are large bromeliads that originate from Brazil, growing in the mountains close to Rio de Janeiro at an elevation to about 1,500m.
It has a huge base growing to up to 1.5m wide that consists of a dense rosette of wide strap-like, corrugated leaves with a smooth margin.
The plant takes from between 8- 20 years to flower. When it does, it produces a 3m tall flower spike with red bracts along the stem and racemes of small scented creamy yellow flowers growing from each bract.
The flowers spike can last for up to 12 months.
After flowering the mother plant will start to die-back while new pups are produced alongside.
There are many varieties, these include:
Alcantarea imperialis Rubra - The underside of the leaves are wonderful red colour, place in a raised bed to enjoy the colourful foliage.
Alcantarea imperialis Purpurea - The broad strap-like leaves are a deep purple to maroon colour and remain so all year.
Alcantarea imperialis Peter Tristram - This lovely plant is the largest of this species cultivated in Australia, its broad strap-like leaves are grey green on the upper side with maroon coloured underside.
These giant Bromeliad definitely make a statement whether in flower or not.
They don't require a great depth of soil, will tolerate full sun, wind, cool nights and once established summer drought.
They grow well in garden beds and in pots around pools, on patios and balconies - all in all a very versatile and visually stunning plant.