Euphorbia Verzorging

Euphorbia Care

, 15 min reading time

Euphorbia, a striking and versatile houseplant, is often associated with the word cactus. Yet, officially, this plant is not a cactus. The Euphorbia belongs to the family of spurge plants (Euphorbiaceae), whereas true cacti belong to a different plant family. The Euphorbia family is large and diverse, with many different species, each with its own unique characteristics. In this care blog, we focus specifically on Euphorbia species that closely resemble cacti in appearance. These plants are often referred to as cowboy cacti due to their spiky look. Despite their cactus-like appearance and the name, Euphorbias are therefore officially not cacti.

What makes this plant unique is that it secretes spurge, a white, latex-like substance that is not produced by true cacti. This houseplant offers an exotic look and is perfect for those who love minimalist green decor. Read on for all our care tips!

Euphorbia Species

The Euphorbia family is incredibly diverse and contains many species that resemble cacti in appearance. Here we discuss some notable Euphorbia species that stand out primarily due to their unique shapes and characteristics. These plants are often referred to as cowboy cacti because of their spiky appearance, but they belong to the spurge family (Euphorbiaceae), not to the cacti.

Euphorbia Obesa

The Euphorbia obesa, often called the "football plant", has a round, spherical shape that strongly resembles a cactus. This species is relatively compact and has a unique appearance with ribs that are slightly profiled. It is an ideal choice for a minimalist interior.

Euphorbia Lactea Cristata

The Euphorbia lactea cristatais a variety of the Euphorbia lactea and is notable for its striking, curled and wavy growth habit, which is an unusual and attractive creates form This "wreath-shaped" variant can add a captivating visual element to your interior.

Euphorbia Triangularis

The Euphorbia triangularis, also known as the African milk tree, has a triangular shape that is strongly reminiscent of cacti. The stems are upright and have a robust appearance, giving this plant a powerful presence in your home.

Euphorbia Variegata

The Euphorbia variegata is a striking species due to its ribbed stem with dark green stripes. This plant has a playful appearance with variations, adding a lively element to your plant collection.

Euphorbia Ingens

The Euphorbia ingens, also known as the "Cactus Euphorbia", has an imposing appearance with long, upright stems covered with sharp spines. This species is perfect for those who want to make a dramatic statement in their interior. These diverse Euphorbia species offer a range of aesthetic possibilities and are excellent choices for anyone who wants a cactus-like look in their interior without actually having a cactus. Due to their varieties in shape and color, they can add a unique and exotic atmosphere to your home.

    Watering Euphorbia

    On average, Euphorbia plants can go without water for a long time. However, this can vary by species. Due to the small number of stomata on their leaves, Euphorbia plants hardly evaporate any water. Moreover, these plants have the ability to absorb and retain many times their own weight in water. This makes them particularly well adapted to dry conditions and reduces the need for frequent watering.

    How often should you water your Euphorbia cactus?

    Euphorbia require little water and are particularly drought-resistant. Allow the potting soil to dry out completely between waterings. In the winter months, when the plant slows down its growth rate, you can reduce the frequency of watering even further.

    Spraying Euphorbia

    Euphorbia does not immediately need spraying. They are accustomed to dry conditions and do not benefit from extra humidity. It is better to avoid spraying the plant, as air that is too humid can be harmful to the plant and can lead to mold growth.

    Euphorbia Location

    Euphorbia species that resemble cacti, such as the cowboy cacti, have specific location requirements to thrive. Here are some general guidelines for choosing the right location for these plants:

    Euphorbia Light Conditions

    Euphorbia plants with a cactus-like appearance need a lot of bright light to grow well. Preferably place them on a sunny windowsill where they can receive direct sunlight for a few hours daily. The more light they receive, the better they develop and the more vibrant the colors will be.

    Protection against Overheating

    Although these plants appreciate plenty of light, too much direct, intense sunlight in the summer can be harmful. It is important to protect them from the hot midday sun, which can burn the spines and damage the plant. Light shade or indirect light can help the plant find the best balance.

    Good Air Circulation

    Euphorbia plants benefit from good air circulation around them. Avoid placing these plants in spots where they are confined between other objects, as this can obstruct airflow and contribute to problems such as mold or root rot. Ensure sufficient space and a well-ventilated environment.

    Euphorbia Temperature and Climate

    Euphorbias do best in a warm climate. Ensure they are protected from cold drafts and temperature fluctuations. Ideally, they should be kept at temperatures between 20°C and 30°C. In winter, lower temperatures may be acceptable, but avoid temperatures below 10°C, as this can be harmful to the plant.

    Prevent Extreme Drought Euphorbia

    Although Euphorbia plants are quite drought-resistant, it is still important to ensure that they are not kept in an environment that is too dry. A room with average humidity is ideal. Avoid placing the plant directly next to heat sources that can make the air extremely dry.

    By taking these location requirements into account, you can ensure that your Euphorbia plants remain healthy and happy. A well-chosen location with sufficient light and air circulation will contribute to their lush growth and attractive appearance.

    Repotting Euphorbia

    Repotting a Euphorbia is generally simple and straightforward. Start by choosing a new pot that is approximately 20% larger in diameter than the current pot your plant is in. Fill the new pot with universal potting soil or special cactus potting soil from Culvita. After repotting, your Euphorbia gets more room to grow, and the fresh soil provides new nutrients that benefit the plant. However, the process becomes more complex when dealing with a larger Euphorbia. Large Euphorbia plants can become heavy, and their sharp spines can make repotting challenging. In such cases, it is advisable to proceed with extra caution. Wrap the plant in a towel to protect the spines and to make the plant easier to hold. It is a good idea to do this process with two people: one person holds the plant firmly with the towel around the stem, while the other removes the old pot. Once the old pot has been removed, carefully lower the Euphorbia into the new pot and fill it with soil. With this approach, you can ensure the repotting of your Euphorbia goes smoothly and give the plant the space it needs to continue growing.

    Fertilizing Euphorbia

    Fertilize your Euphorbia during the growing season, from spring to autumn. Use a cactus fertilizer or a balanced houseplant fertilizer, but avoid over-fertilization. Fertilizing once a month is usually sufficient.

    Euphorbia Cuttings

    Supplies

    • Euphorbia
    • Knife
    • Disinfectant or pure alcohol
    • Flowerpot with fresh potting soil
    • Old towel
    • Gloves

    Step 1: Disinfecting

    Start by cleaning the knife you are going to use. Hold the knife under hot water and clean it thoroughly to prevent transferring bacteria during cuttings. Do you have disinfectant or pure alcohol available? If so, use this to further disinfect the knife after rinsing it. This helps to eliminate bacteria and fungi.

    Step 2: Cut the Cutting Loose

    Put on gloves before touching the Euphorbia. This protects your hands from the spurge released during the cutting process. If your Euphorbia has nodules, carefully cut them off. For a Euphorbia with a long stem, cut the stem close to the ground. Immediately rinse the cut under running water to remove the spurge.

    Step 3: Let the Cutting Dry

    Let the cutting dry for at least a week in a cool, shady spot with minimal temperature fluctuations. This drying is crucial for promoting root growth. Ensure the cutting is completely dry before proceeding to the next step.

    Step 4: Caring for the Cuttings

    Once the cutting has dried out well, you can repot it. Use a mixture of potting soil and sand for best results. Place the cutting on top of the soil or insert it lightly into the soil. Place the pot in a spot with plenty of indirect sunlight. Do not water the cutting until you see signs of growth. As soon as the cutting starts to grow, you can begin watering.

    With these steps, you can safely and effectively propagate Euphorbia cuttings and grow them successfully.

    Euphorbia Toxic

    Yes, Euphorbia cacti are toxic. The sap can cause irritation upon contact with the skin and can be harmful if ingested. Ensure that you keep the plant out of reach of children and pets, such as cats, and wear gloves when caring for the plant.

    Pruning Euphorbia

    Pruning a Euphorbia may be necessary, but it is important to proceed with caution. During pruning, a white, toxic sap often comes out of the plant's cuts, known as spurge. This sap can cause irritation to the skin and eyes, so it is essential to be well prepared. To protect open wounds after pruning and prevent infections, you can cover the cut edges with some ash, for example from a barbecue. This method helps to seal the wound and reduces the risk of infection. However, with some Euphorbia species, the wounds created during pruning can be so large that it is difficult to seal them effectively. In such cases, it is better to consider avoiding pruning, as there is a high chance that the plant will not survive if the wounds cannot be properly sealed. Always be careful and consider the health of the plant when planning pruning work.


    With these care tips, your Euphorbia cactus can thrive and be a beautiful, green addition to your interior. Remember to check regularly for specific needs and address any problems in a timely manner to keep your plant healthy and happy.


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