How to care for Crassula succulents
Let's explore together the topics related to the cultivation of Crassula succulents and the methods and precautions for raising them, following the editor!
Crassula is a large genus in the family Crassulaceae, with nearly 200 recognized succulent plants belonging to this genus. They are native to various parts of the world and may be one of the most popular succulents. In addition to the original varieties, there are many attractive cultivars and hybrids.
In 1753, the Swedish botanist Carl Linnaeus first officially described Crassula as a genus with ten species.
The common name "Crassula" originates from the Latin word "crassus," meaning "thick," referring to the fleshy leaves.
Members of the Crassula genus are mostly annuals or perennials, some herbaceous and some woody, with some having underground tubers. They vary in size and growth habits. These succulents have fleshy leaves with interesting shapes and colors, often accompanied by cute star-shaped flowers. Some species are monocarpic, dying after flowering.
Growth conditions for Crassula
Crassula is one of the most popular succulents and can be grown indoors and outdoors without issues.
1. Light
Crassula prefers full sun rather than shade. However, during the hottest part of the summer, strong afternoon sunlight can burn the leaves of the plant. Many Crassulas can beautifully turn red, purple, pink, orange, or yellow during long daylight hours in the summer, but even the reddest plants will turn green in dim light.
If there is sufficient light, most Crassulas can be grown indoors. Place your Crassula near a south-facing window where it can receive at least 6 hours of direct sunlight.
2. Soil
Crassula is not particularly picky about soil pH, but they require well-draining, porous soil. Most Crassulas can grow well in sandy or even rocky soil. In their native habitats, Crassula plants often grow in rock crevices.
3. Temperature
Crassula enjoys summer temperatures of 18 to 21 degrees Celsius. In winter, maintain temperatures around 10 degrees Celsius. Most Crassulas can tolerate some frost, but extreme cold or heat can cause them to shed leaves and die. The biggest challenge for outdoor plants in winter is to protect them from temperatures below 32ºF (0ºC). Most varieties are suitable for outdoor planting in USDA hardiness zones 9a to 10b, between 20 to 40°F (-6.7 to 4.4°C). However, in other places, you can bring potted plants indoors to overwinter.
Daily care for Crassula
Crassula is an ideal succulent for beginners.
1. Watering
Crassula is recommended to use the "soak method" to avoid overwatering, where the soil is soaked with water, slowly drained, and then watered again after drying. Reduce watering in winter because if the soil remains moist for too long, your Crassula will rot. Increase watering during the growing season, as too little water can cause the lower leaves to fall off. In their native habitats, Crassula leaves will shrink when absorbing stored water and become plump when it rains.
2. Fertilizing
Crassula does not require much fertilizer. In early spring, when they start to grow rapidly, organic fertilizers can be applied.
3. Repotting
If necessary, it's best to repot Crassula in the spring, ensuring the soil is dry before starting to replant and then gently removing the pot. Let your Crassula dry for about a week after repotting, then start watering to prevent root rot.
4. Pruning
Occasional pruning can keep Crassula healthy and compact. When the plant starts to become untidy, don't be afraid to prune. It's best to prune in the spring or after flowering.
Jade plant is a popular choice among bonsai enthusiasts. Many people starting with bonsai begin with the Jade plant.
How to propagate Crassula
Crassula is commonly propagated from leaves or stem cuttings.
1. Leaf Propagation
The simplest method is to propagate Crassula from a leaf. Choose a healthy leaf and gently twist it off the stem. Place it on well-draining soil and keep the soil slightly moist.
2. Stem Cuttings
The fastest propagation method for Crassula is stem cuttings. This method works best for branched plants. Choose a healthy stem and remove it from the main plant. Let it develop calluses for a few days before placing it in a well-draining soil mixture. Water sparingly to keep the soil moist before root formation. Once it has rooted, you can treat it like a mature plant.
3. Seed Sowing
Seeding is the slowest method of propagating Crassula. Sow in spring or summer. Germination is best at temperatures below 21°C. Do not cover these seeds with soil and avoid direct sunlight. They usually start to germinate within 1 to 3 weeks. When seedlings have at least three leaves, they can be transplanted into individual pots.
How to care for Crassula succulents
Pests and Diseases of Crassula
1. Pests
The main pests are mealybugs, spider mites, and aphids. Fortunately, they are relatively easy to control.
2. Diseases
Crassula is also susceptible to bacterial soft rot, powdery mildew, and black ring disease. These diseases are easy to identify and can be treated once detected.
Toxicity of Crassula
Crassula is generally non-toxic to humans and slightly toxic to cats, dogs, and some other animals.
The above is a detailed explanation of how to care for Crassula succulents, Crassula cultivation methods, and precautions. I hope this article can provide you with assistance in green plant management!