Euphorbia milii, also known as Crown of Thorns, is a common ornamental plant, loved for its bright flowers and dense green leaves. However, many people are unsure whether it is toxic and if it can be kept indoors. Here we will provide a detailed introduction.

The Toxicity of Euphorbia milii
Euphorbia milii belongs to the Lythraceae family, and its roots, stems, leaves, flowers, and fruits all contain a certain amount of toxins. Among them, there are three main toxins: colchicine, guanine, and lucorine.
How to Care for Euphorbia milii Safely
If you have children or pets, please place the Euphorbia milii where they cannot reach it. If you need to handle the plant, please wear gloves and a mask to avoid direct contact with the toxins.

Choosing a Healthy Euphorbia milii
When purchasing an Euphorbia milii, choosing a healthy plant is crucial. It is best to select a plant with dark green leaves and no pests or diseases.
Maintaining a Suitable Environment
Euphorbia milii is suitable for growing in a semi-shaded, semi-sunny environment. The indoor temperature should not be too high or too low. Maintaining appropriate humidity is also very helpful for the growth of Euphorbia milii.
Watering Timely
Euphorbia milii is not drought-tolerant, but it should not be overwatered either. Generally, watering appropriately to keep the soil moist is sufficient.

Fertilizing Precautions
During the growth period of Euphorbia milii, it needs to be fertilized timely. However, over-fertilizing will affect its growth, so it is important to pay attention to applying the right amount of fertilizer.
Pruning Tips
Euphorbia milii needs to be pruned regularly to maintain its beautiful shape. When pruning, be careful to avoid direct hand contact with the plant to prevent exposure to the toxins.
The Language of Euphorbia milii Flowers
In addition to its beauty, Euphorbia milii also has a rich flower language. It represents strength, courage, hope, and love, making it an ornamental plant with profound meaning.
Conclusion: As a common ornamental plant, Euphorbia milii has bright flowers and a rich flower language, making it a good choice for home and office decoration. However, Euphorbia milii contains toxins and requires safe care. We hope this article can help you better understand and care for your Euphorbia milii.