Introduction
Cymbidium orchids are a popular choice for indoor and outdoor gardens due to their stunning flowers and relatively easy care requirements. However, like all plants, they need to be repotted periodically to maintain their health and vigor. In this article, we’ll explore the key signs that indicate it’s time to repot your cymbidium orchid, the ideal potting mix, and how to care for your plant after repotting.
Signs It’s Time to Repot
Cymbidium orchids typically need to be repotted every 2-3 years, as the bark-based potting mix they are typically grown in will break down over time. However, the exact timing may vary depending on the plant’s growth and condition. Here are some signs that indicate it’s time to repot your cymbidium orchid:
- Overcrowding: If the plant has outgrown its pot and the roots are pushing the plant up, it’s time to repot into a larger container.
- Pot Bound: If the plant is very pot bound or its medium no longer drains properly, it’s time to repot.
- Visible Roots: If the roots are visible above the potting mix or are growing out of the pot, it’s time to repot.
Ideal Potting Mix
The best potting mix for repotting cymbidium orchids is a fresh, bark-based orchid compost. This type of potting mix provides the necessary aeration and drainage that cymbidiums require. When repotting, be sure to use a pot that is about 4 inches (10 cm) wider than the previous one, and ensure it has good drainage holes.
Repotting Steps
- Remove Old Potting Mix: Carefully remove the plant from its pot and discard the old, decomposed bark-based potting mix.
- Trim Dead Roots: Inspect the roots and remove any dead or rotten ones. Shorten the remaining healthy roots to about 6-8 inches (15-20 cm) long.
- Divide Pseudobulbs: If the plant has formed a large clump of pseudobulbs, you can divide them into several new plants by sawing through the center of the clump and the rootball.
- Choose a New Pot: Select a pot that is about 4 inches (10 cm) wider than the previous one, with good drainage holes.
- Use Fresh Potting Mix: Fill the new pot with a fresh, bark-based orchid potting mix, and place the base of the pseudobulb at or just above the potting mix level.
- Water and Fertilize: Water the plant well after repotting, and fertilize with an orchid-specific fertilizer to promote growth and flowering.
Post-Repotting Care
- Watering: Water the plant regularly, allowing the potting mix to dry out slightly between waterings. Reduce watering in the winter months.
- Fertilization: Feed the plant with a balanced orchid fertilizer during the growing season, and switch to a high-potassium fertilizer in the summer and autumn to encourage flowering.
- Light and Temperature: Provide bright, indirect light and maintain temperatures between 50-75°F (10-24°C).
By following these guidelines, you can successfully repot your cymbidium orchid and ensure its continued health and vibrant flowering.
References
- Royal Horticultural Society. (n.d.). How to grow cymbidium orchids. Retrieved from https://www.rhs.org.uk/plants/cymbidium-orchids/how-to-grow-cymbidium-orchids
- Care For Your Orchids. (n.d.). How to Repot Cymbidium Orchids. Retrieved from http://careforyourorchids.com/How-to-Repot-Cymbidium-Orchids.html
- YouTube. (2019). Repotting a Cymbidium Orchid. Retrieved from https://www.youtube.com/watch?v=TF1DswOVzKs
- The Martha Stewart Blog. (2018). Repotting My Cymbidium Orchids. Retrieved from https://www.themarthablog.com/2018/10/repotting-my-cymbidium-orchids.html