Crown Of Thorns Plant Care

Crown of Thorns Plant Care is your ultimate guide to keeping this stunning plant thriving in your home or garden. This article will provide you with all the essential tips and tricks to ensure your Crown of Thorns plant stays healthy and vibrant. Whether you’re a seasoned plant enthusiast or a beginner looking to take on a new green companion, this article is here to help you succeed. From watering and sunlight requirements to potting and pruning techniques, we’ve got you covered. So, get ready to dive into the world of Crown of Thorns plant care and watch your plant thrive like never before!

Light Requirements

Indoor Light

When it comes to providing adequate light for your indoor crown of thorns plant, it is important to find the right balance. These plants thrive in bright, indirect light. Place your crown of thorns near a window that receives bright, filtered sunlight. If you don’t have a window with sufficient light, you can also use fluorescent lights as a source of artificial light for your plant. Just make sure to keep the lights on for around 12-14 hours a day to mimic natural daylight.

Outdoor Light

If you choose to grow your crown of thorns plant outdoors, it will require a good amount of sunlight. Find a location in your garden or patio that receives full sun for at least 6-8 hours a day. Direct sunlight is essential for the plant to bloom and thrive. However, it is important to protect the plant from intense heat during the hottest part of the day, especially in hotter climates. Providing some shade during these peak hours can prevent the leaves from scorching and maintain plant health.


Watering Frequency

When it comes to watering your crown of thorns plant, it is important to strike a balance. These plants prefer to dry out slightly between waterings, so it’s best to err on the side of underwatering rather than overwatering. Water your plant thoroughly when the top inch of soil feels dry to the touch. During the winter months or cooler seasons, you can reduce the frequency of watering, as the plant’s growth slows down.

Watering Method

To prevent root rot and ensure proper drainage, it is important to use the right watering method for your crown of thorns plant. Avoid allowing water to sit in the saucer or tray below the pot. Instead, water the plant directly at the base, allowing the water to soak deep into the soil. Once the excess water has drained out, ensure that the pot is not sitting in water. This will help prevent waterlogged soil and promote healthy growth.

Crown Of Thorns Plant Care


Well-Draining Soil

Crown of thorns plants require well-draining soil to prevent waterlogged roots and promote healthy growth. A well-draining soil mix should consist of a combination of potting soil, perlite, and coarse sand. This mixture allows excess water to drain away from the roots, preventing the risk of root rot. Avoid using heavy clay-based soil or garden soil, as they tend to retain too much moisture and may lead to root issues.

Soil pH

The crown of thorns plant thrives in slightly acidic to neutral soil pH. Aim for a soil pH range of 6.0 to 7.0. To test the pH of your soil, you can use a pH testing kit available at most garden centers. If your soil pH is outside the ideal range, you can adjust it by adding organic matter such as compost or peat moss to increase acidity or adding lime to increase alkalinity. Maintaining the right pH balance in the soil will ensure optimal nutrient uptake for your plant.


Ideal Temperature

Crown of thorns plants prefer warm temperatures and thrive in a range between 65°F (18°C) to 85°F (29°C). These plants are not frost-tolerant, so it is crucial to bring them indoors during colder months if you live in a region with freezing temperatures. Keep the plant away from drafty areas and heating vents, as these can cause temperature fluctuations and impact its overall health.

Cold Protection

If you live in a region with mild winters or occasional cold snaps, it’s crucial to protect your crown of thorns plant from frost. Cover the plant with a frost cloth or move it to a more sheltered location when temperatures drop below 40°F (4°C). A frost cover will provide some insulation and protect the plant from cold damage. It’s also a good practice to warm the plant’s root zone by placing a layer of mulch around the base during colder months.

Crown Of Thorns Plant Care


Optimal Humidity Levels

Crown of thorns plants are relatively adaptable when it comes to humidity levels. They can tolerate average room humidity, but they appreciate a slightly more humid environment, especially during dry seasons or in arid climates. Aim for a humidity level between 40% to 60% to keep your plant happy and healthy.

Increasing Humidity

To increase humidity around your crown of thorns plant, you can use several methods. One easy way is to place a tray filled with water near the plant. As the water evaporates, it will increase the surrounding humidity. Another option is to use a humidifier in the same room as the plant. This will create a more consistent and controlled humidity level. Finally, grouping plants together can help create a microclimate with higher overall humidity, benefiting all the plants involved.


Fertilizer Type

To promote healthy growth and flowering, it is important to feed your crown of thorns plant with the right type of fertilizer. For these plants, a balanced, water-soluble fertilizer with an N-P-K ratio of 10-10-10 or 20-20-20 is ideal. Fertilizers rich in phosphorus (the second number in the N-P-K ratio) promote flower production. Use the fertilizer at half the recommended strength, applying it every 4-6 weeks during the active growing season.

Fertilizing Schedule

During the active growing season, typically spring through late summer, it’s important to fertilize your crown of thorns plant regularly. Apply the diluted fertilizer solution when the soil is moist, taking care not to let it touch the leaves or stems of the plant. As the crown of thorns plant enters its dormant period during fall and winter, reduce or stop fertilizing entirely to match the plant’s decreased growth.


Pruning Method

To maintain shape, encourage bushiness, and remove any dead or damaged parts, it is essential to prune your crown of thorns plant. Use a pair of clean, sharp pruning shears to make precise cuts. When pruning, always wear protective gloves as the sap of the crown of thorns plant can be irritating to the skin. Cut just above a leaf node or stem joint, ensuring a clean cut to minimize the risk of infection. Avoid excessive pruning during the dormant period as it may hamper new growth.

Pruning Frequency

Pruning frequency for a crown of thorns plant largely depends on its growth and shape. Regularly assess your plant and prune as needed to maintain its overall appearance and health. In general, pruning once or twice a year during the active growth season is sufficient. Remove any dead or yellowed leaves, branches that are crossing or rubbing against each other, or branches that are extending beyond the desired shape of the plant.


From Cuttings

Propagating a crown of thorns plant from cuttings is a popular and relatively easy method. Start by taking a 4-6 inch cutting from a healthy and mature plant. Remove any leaves from the lower half of the cutting. Dip the cut end in a rooting hormone powder to encourage root development. Plant the cutting in a well-draining potting mix and keep it in a warm, bright location. Mist the cutting occasionally to maintain humidity and water it sparingly until roots develop.

From Seeds

Growing a crown of thorns plant from seeds can be a rewarding experience, albeit a more time-consuming one. Collect mature seeds from the plant and sow them in a seed-starting mix. Cover the seeds lightly with the mix and mist them gently to provide moisture. Place the container in a warm area, ideally around 70°F (21°C), and provide bright, indirect light. Keep the soil consistently moist but not overly saturated. With patience, the seeds will germinate, and the seedlings can be transplanted once they have a few sets of true leaves.

Pests and Diseases

Common Pests

While crown of thorns plants are generally hardy, they can still fall victim to a few common pests. Watch out for mealybugs, aphids, and spider mites, which are the most likely culprits. Regularly inspect the leaves and stems for any signs of infestation, such as small insects, sticky residue, or discolored leaves. If you notice any pests, treat them promptly with a gentle insecticidal soap or neem oil spray. Repeat the treatment as necessary to eradicate the pests.

Disease Prevention

Crown of thorns plants are relatively resistant to diseases, but they can still be affected by root rot, leaf spot, or stem rot if their care requirements are not met. To prevent these issues, ensure that your plant is in well-draining soil and that the pot has proper drainage holes. Avoid overwatering and make sure the leaves are dry to prevent fungal growth. If you notice any signs of disease, such as discolored or wilting leaves, take immediate action by adjusting watering practices and removing any affected plant parts.


Repotting Frequency

Crown of thorns plants generally prefer being slightly root-bound, so they do not need to be repotted frequently. Repotting every 2-3 years is usually sufficient. However, if your plant has outgrown its current pot or the roots are tightly coiled, it is time to repot. Spring is the best season for repotting, as the plant is entering its active growth period. Choose a pot that is one size larger than the current one, ensuring it has proper drainage holes.

Choosing the Right Pot

When selecting a new pot for your crown of thorns plant, choose a pot with proper drainage holes to prevent waterlogged soil. Opt for a material such as clay or terracotta that allows for airflow and helps wick away excess moisture. The pot should be slightly larger than the current one, allowing some room for the roots to expand but not excessively spacious. A well-fitting pot will provide stability for the plant and promote healthy growth.

Caring for your crown of thorns plant may seem daunting at first, but with the right knowledge and a little attention, it can flourish and reward you with its vibrant blooms. Remember to provide adequate light, water it appropriately, use a well-draining soil mix, maintain suitable temperatures, manage humidity levels, fertilize regularly, prune as needed, propagate with care, watch out for pests and diseases, and repot when necessary. With these comprehensive care instructions, your crown of thorns plant will thrive and become a beautiful addition to your indoor or outdoor space.