The picturesque Shire of Denmark in Western Australia faces an unexpected threat: the rapid spread of Arum Lilies. These elegant white flowers, while visually appealing, are causing growing concern among residents and environmentalists alike.
A recent social media post has sparked a heated discussion about the proliferation of these invasive plants. The original poster, using a heavy dose of sarcasm, highlighted the alarming rate at which these lilies are spreading throughout the region.
The Deceptive Beauty
At first glance, Arum Lilies appear harmless and even attractive. Their elegant white blooms have led some to view them as a natural decoration. However, beneath this façade lies a serious ecological threat.
“These elegant flowers are free and a very quick-spreading natural resource,” the original poster stated ironically, adding, “In a matter of years there will be many millions carpeting pretty much everywhere you look.”

This rapid spread is not an exaggeration. One commenter pointed out the situation in a neighbouring area, saying, “See the Shire of Busselton area for example,” referring to the extensive carpet of lilies visible from Bussell Highway in Vasse.
Hidden Dangers
While their appearance may be deceiving, Arum Lilies pose significant risks to both the environment and living beings.
Natasha, a concerned community member, warned, “These plants can be highly harmful to humans and poisonous to animals. All parts of the plant, especially the flower, are poisonous and can cause: eczema and dermatitis, irritation, burning and swelling of the mouth and throat.”

The threat extends beyond immediate health risks. As the original poster pointed out, “If you are looking forward to a future toxic monoculture, without biodiversity, or native flora and fauna, then get excited.” This statement underscores the potential long-term ecological damage these lilies could cause if left unchecked.
Community Response
The community’s reaction to this invasive species has been swift and passionate. Many residents are calling for immediate action to curb the spread of Arum Lilies.
Michel Hatchett emphasised the urgency of the situation, stating, “Denmark needs to get onto this with an eradication programme. South West has been struggling for years with this problem and spending millions. Still haven’t made much of a dent in the problem.”
Several community members have already taken matters into their own hands. Adriana Baker shared, “We are spraying ours constantly,” while others suggested digging them up as an alternative method of removal.
The Road Ahead
As Denmark grapples with this floral invasion, the community faces a critical decision. The original poster summed up the situation, saying, “Alternatively, the Denmark community could knock them on the head now while they are few in number and just establishing their foothold in the region.”

Suggestions for action include coordinated efforts with local authorities, as Jo Lacy proposed, “Maybe the Denmark shire could offer to give out poison to spray these evasive plants.”
While the battle against Arum Lilies may seem daunting, success stories from neighbouring regions provide hope. Jen Famlonga shared her experience: “I used the herbicide provided for free (in the Yallingup area at the time) and gained control of them on my property. It felt good to spray them one day of the year, and over a few years they all but disappeared.”
As Denmark stands at this ecological crossroads, the community’s response in the coming months will be crucial in determining the future of its beloved natural landscape. The fight against the deceptively beautiful Arum Lily has just begun, and only time will tell if this green menace can be contained before it’s too late.






