Alocasias are among the most popular tropical houseplants, captivating with their striking leaves and exotic appearance. If you already own an Alocasia and want to propagate the plant, there are several options for obtaining new cuttings. Depending on the species and condition of the parent plant, you can choose between rhizome division, propagation by suckers, or rooting individual rhizome pieces .
While some Alocasia species regularly produce small offshoots, others require a little more effort to propagate successfully. In this article, you'll learn which method is best for your plant and how to grow new, healthy Alocasia plants.
The different methods for propagating Alocasia
Alocasia can be propagated in three main ways:
- Propagation by offshoots – The simplest method, as many Alocasias regularly produce side shoots.
- Rhizome division – A proven technique for propagating larger plants.
- Rhizome pruning and rooting – Suitable for older plants or when there are no offshoots.
Each of these methods has its own advantages and disadvantages, which should be considered depending on the plant species and the condition of the mother plant.
Child reproduction: The easiest method
Many Alocasia species eventually produce small side shoots or "offshoots" that grow in the soil next to the parent plant. These offshoots are independent plants that can easily be separated from the main plant.
- Carefully remove the mother plant from the pot.
- Look for small shoots with their own roots. These should be at least 5–10 cm long to allow for independent development.
- Separate the offshoot from the main plant with a clean, sharp knife or by gently pulling it. Make sure it has its own roots.
- Plant the offshoot in its own container with permeable substrate. A mixture of loose potting soil, perlite, and some coconut fiber is ideal.
- Keep the substrate slightly moist and place the plant in a warm, bright location without direct sunlight.
Rhizome division: Obtaining multiple plants from one Alocasia
If an Alocasia grows too large for its pot or develops many side shoots, it can be propagated by rhizome division . This method is particularly suitable for vigorous plants with multiple main shoots .
- Carefully remove the plant from the pot and remove excess soil to expose the root system.
- Examine the rhizome. Look for areas where natural dividing points exist between the individual shoots.
- Divide the rhizome into several sections using a disinfected knife or scissors. Each section should have at least one shoot and a few roots.
- Let the cuts dry for a few hours to prevent infection. Optionally, dust them with activated charcoal powder to prevent rot.
- Place the individual rhizome pieces in new pots with fresh soil.
- Water the plant sparingly and place it in a warm, sheltered location.
Rhizome pruning and rooting: An alternative for older plants
If there are no offshoots and rhizome division isn't possible, you can try rooting individual rhizome pieces . This is a good way to regenerate older or bare plants .
- Cut off a piece of the rhizome with a sterile knife.
- Let the rhizome dry for a few days so that a protective layer forms.
- Plant the piece in slightly moist soil or place it on moist moss. Alternatively, rooting in water also works.
- Maintain high humidity and a constant temperature of around 22–26°C.
- After a few weeks, roots and the first leaves should form.
Important care tips after propagation
No matter which method you use to propagate your Alocasia , proper aftercare is crucial for success.
- Humidity: Keep the environment moist to facilitate the growth of the new plant. A transparent cover or regular misting helps.
- Temperature: Alocasias love warmth! A consistent temperature of 22–26°C is ideal.
- Watering: After propagation, water sparingly until the plant is well rooted. Avoid waterlogging.
- Location: A bright spot with indirect light promotes growth, but direct sun can burn young leaves.
The right method for every Alocasia
Alocasia can be propagated in several ways— through cuttings, rhizome division, or rooting rhizome pieces . Each method has its own advantages and disadvantages, which should be considered depending on the condition of the parent plant.
If you already have a healthy Alocasia, you can quickly grow new plants with a little patience and the right techniques. Proper care after propagation is crucial for success, as a stable environment ensures vigorous growth and healthy roots.
