Anyone who has visited Deep Creek Conservation Park would know

that it is synonymous with the Southern Grass Tree (Xanthorrehoea Australis)

The District Council of Yankalilla has used it as its logo for many years.

But did you know that these grass trees are slow growing and long lived with

some estimated to be 450 years old.

 

Yaccas in Stringybark Forest

A feast of Yaccas in the Stringybark Forest

  In fact, the rough trunk only develops after many

years of growth.  Its typical black appearance is the result of exposure to bushfires over decades.

The reason the tree usually survives a fire is that its living growth-point

is buried underground, protected by a tightly packed leaf base.

 

Growth rates, although hard to quantify, have been estimated at between 1-3 cm per year.

Flowering takes several years and does not happen annually.

However, after bushfires up to 80% of grass trees will flower producing

a single spear-like cream coloured stem that can reach up to 3m in height.

 

Flowering Yaccas at Cobbler Hill with Kangaroo Island in the background

Flowering Yaccas at Cobbler Hill with Kangaroo Island in the background

The Southern grasstree was an important plant for Aborigines, both as a source

of food and drink as well as for fibre and materials for tool and weapon construction.

The flowering stem, when soaked in water, produces a sweet drink

while it also releases a resin that was used as a glue when making tools.

Stems could also be used as part of a spear or as a base for fire making

implements and the tough seed pods were used as cutting implements.

 

The distinctive leaves of grass trees are captivating

The distinctive leaves of grass trees are captivating

 

European settlers used the resin to produce a lacquer for furniture.

Grass trees are also known as ‘yacca’, which is likely derived from

a South Australian Aboriginal language, mostly likely Kaurna.

Today you can marvel at the majesty of these great survivors

from the comfort of your patio at the Ridgetop Retreats.

 

Xanthorrehoea at Ridgetop Retreats

Watch the leaves of the Yacca dance to the tune of the wind from your patio