Grass trees, also known as Xanthorrhoea, have a long lifespan compared to many other plants. On average, they can live for several decades to centuries, depending on various factors.

The lifespan of a grass tree can be influenced by factors such as environmental conditions, species type, soil quality, and disturbances like fire. Some grass tree species have been known to live for 200 years or more.

It’s worth noting that the growth rate of grass trees is relatively slow. They typically have a slow reproductive cycle, and it can take many years for them to reach maturity and produce flowers and seeds.

While grass trees have the potential for long lifespans, it’s important to consider that individual plants may vary in their longevity depending on specific circumstances. Factors such as habitat conditions, disease, and human activities can also impact their lifespan.
If you have a grass tree on your property or are interested in their conservation, it’s advisable to seek guidance from local authorities or experts who can provide specific information about the species and its expected lifespan in your area.