The poinsettia is a staple of the Christmas season, with its vibrant crimson and deep green foliage bringing joy to many homes.
But while it’s tempting to plant it in your garden after the holidays, experts are warning against it.
A Potential Weed in Disguise
Despite its festive appearance, the poinsettia can quickly become a nuisance in your backyard. According to Professor Brett Summerell, Chief Scientist at the Botanic Gardens of Sydney, poinsettias can grow quite large and lose their colorful foliage, becoming an eyesore. “After the color has faded in the potted plants, it’s best to cut it up and compost it. Just wear clothes when doing this, so the milky sap doesn’t come into contact with your skin,” he advises.
Dr. Carol Booth, Principal Policy Analyst at the Invasive Species Council, echoes this warning, stating that while poinsettias aren’t currently considered a significant weed, they have the potential to become a problem in the future.
The Toxic Sap You Need to Know About
But that’s not the only issue with poinsettias. Their milky sap is slightly toxic and can irritate the skin, causing blisters, swelling, or general irritation. Ingesting the sap in large quantities can lead to diarrhea, vomiting, and temporary blindness if it comes into contact with your eye. And if you have young children or pets, you’ll want to exercise extra caution around this plant.
The More Problematic Dwarf Poinsettia
The dwarf poinsettia, also known as painted spurge, is an even greater concern. According to Professor Summerell, it’s more corrosive than the true poinsettia and can cause problems on adult skin, not just sensitive skin. This plant is already considered an environmental weed in Queensland and NSW, preferring sandy soils and disturbed sites.
The History and Harm of Poinsettias
Poinsettias have a rich history, dating back to the Aztec empire 500 years ago. But their cultivation has also led to environmental concerns. In Western Australia, they’re an occasional weed in the north, and have even been recorded in suburban Perth and offshore islands.
What You Can Do Instead
So what can you do with your poinsettia after the holidays? Instead of planting it in your garden, consider composting it or repotting it in a controlled environment. And if you’re looking for a festive alternative, why not try planting a native Australian species that’s safe for your skin and the environment?
By being mindful of the potential risks associated with poinsettias, you can enjoy their beauty while also protecting your garden and the environment.
