What precautions should be taken when you repot your plants in winter

Repotting plants during winter can be a bit more challenging and less ideal compared to other seasons. This is primarily due to the plant’s natural growth cycle and the potential stress caused by environmental factors. 

However, there are certain situations where repotting might be necessary, for example when the plant is struggling due to:

1. Root-bound conditions
2. Depleted soil nutrients, or 
3. Signs of distress, like yellowing leaves, stunted growth, or roots emerging from the drainage holes.

In Planteka, we help plant parents like you take better care of their plants. So if you went through the checklist and think it’s time to repot, follow these precautions to minimize stress and promote a successful transition:

• Choose an appropriate time: If possible, choose a mild day to repot when the temperatures are not extremely cold. Avoid repotting during frosty or extremely wet conditions, as this can add additional stress to the plant.
• Use only a slightly larger pot: The pot should be only slightly larger than the current one. A moderate increase in the pot size helps prevent overwatering and allows the plant to adjust more easily. Read here how to choose a correct pot.
• Use well-draining soil: Aeration is crucial, especially in winter when the plant is not using water as actively.
• Water conservatively: Plants don’t need so much water after repotting during the dormant or slower growth periods of autumn and winter. Overwatering can lead to root rot.
• Provide enough light: Since days are shorter and sunlight intensity is lower in autumn and winter, ensure the repotted plant receives adequate light. Position it near a bright window, and consider grow lights if needed.
• Minimise root disturbance: Be gentle when handling the roots to minimize disturbance. Trim any dead or rotting roots and carefully spread out healthy roots in the new pot.
• Avoid fertilising initially: Do not fertilise for a few weeks immediately after repotting. Fertilising too soon can further stress the plant. Wait until you see signs of new growth or even better until the growing season resumes.
• Shield from extreme temperatures: If you’re repotting during a cold spell, consider placing the plant in a protected area or covering it overnight to prevent shock.
• Monitor and adjust: Keep a close eye on the plant in the weeks following repotting. Monitor for signs of stress, such as wilting or yellowing leaves, and make adjustments accordingly.
• Quarantine: If you’re repotting a new plant or one that has been moved indoors from an outdoor environment, consider quarantining it for a brief period to observe for pests or diseases. Read more about quarantine here.

If you are still unsure, but you see all the signs of distress with your plants, there is no harm in getting help from a plant professional. By taking these precautions, you can help your plants successfully navigate the repotting process during autumn and winter, ensuring minimal stress and a healthy transition.

Read next about what plants to pair together when you bring them indoors in the colder months.