Updated: July 16, 2023

Shiso, also known as Perilla or Japanese Basil, is a popular herb commonly used in Asian cuisines. It is not only valued for its culinary uses but also for its attractive foliage and medicinal properties. If you have a shiso plant that has outgrown its current pot or simply needs some fresh soil, repotting it is a necessary step to ensure its healthy growth. In this article, we will guide you through the process of repotting a shiso plant.

Why Repot a Shiso Plant?

Repotting a shiso plant is essential for its overall health and growth. Over time, the roots of the plant can become crowded and reach the limits of their current container. This can lead to stunted growth, nutrient deficiencies, and even root rot. Repotting allows the plant to have more space for root expansion, access fresh nutrients from the soil, and promotes healthier foliage growth.

When to Repot?

The best time to repot a shiso plant is during the spring season when the plant is actively growing. Avoid repotting during winter or when the plant is dormant as it may cause stress or shock to the plant. Signs indicating that it’s time to repot your shiso plant include roots growing out of the drainage holes, slow growth, or yellowing leaves despite regular care.

Supplies Needed

Before you begin the repotting process, gather all the necessary supplies:

  1. A larger pot: Choose a pot that is at least 2-3 inches larger in diameter than the current pot. Ensure that it has drainage holes to prevent waterlogging.
  2. Fresh potting soil: Opt for well-draining soil mix suitable for herbs or vegetables.
  3. Trowel or gardening gloves: These will help you handle the plant and soil easily.
  4. Watering can or spray bottle: Use it to moisten the soil after repotting.
  5. Optional: Fertilizer or compost for future plant nourishment.

Step-by-Step Guide to Repotting Shiso

Follow these steps to successfully repot your shiso plant:

Step 1: Choose a Suitable Pot

Select a pot that is slightly larger than the current one. Ensure it has drainage holes to prevent waterlogging, as excess moisture can lead to root rot. Clay or terracotta pots are good options as they allow for better airflow and drainage.

Step 2: Prepare the New Pot

Before transferring the shiso plant, prepare the new pot by filling it with fresh potting soil. Leave enough space at the top to accommodate the plant without spilling over.

Step 3: Gently Remove the Shiso Plant

Carefully remove the shiso plant from its current pot. You can use a trowel or your hands (with gloves) to loosen the soil around the edges of the pot. Be cautious not to damage the roots.

Step 4: Inspect and Untangle the Roots

Once the plant is out of its pot, gently inspect its roots. If you notice any tangled or circling roots, carefully untangle them using your fingers. This helps promote healthy root growth in the new pot.

Step 5: Place Shiso Plant in the New Pot

Position the shiso plant in the center of the new pot, ensuring that it sits at the same depth as before. The base of the stem should be level with the soil surface. Adjust the soil level beneath if necessary.

Step 6: Fill with Fresh Soil

Fill the space around the shiso plant with fresh potting soil, gently pressing it down to eliminate air pockets. Leave some space at the top to allow for watering.

Step 7: Water Thoroughly

After repotting, thoroughly water the shiso plant until excess water drains out of the bottom. This helps settle the soil and hydrate the roots. Avoid overwatering, as it may lead to root rot.

Step 8: Prune if Necessary

If your shiso plant has grown leggy or has any damaged or diseased leaves, you can prune them at this stage. Pruning helps redirect energy towards healthy growth and improves the overall appearance of the plant.

Step 9: Provide Adequate Care

Place the repotted shiso plant in a location that receives bright, indirect sunlight for at least 6-8 hours a day. Water the plant when the top inch of soil feels dry to the touch. Avoid overwatering or allowing the soil to completely dry out.

Step 10: Future Care and Maintenance

To ensure continued growth and health of your shiso plant, provide regular care and maintenance. This includes fertilizing every 4-6 weeks during the growing season with a balanced liquid fertilizer or organic compost. Monitor for pests and diseases, and promptly address any issues that arise.

Conclusion

Repotting a shiso plant is a simple yet crucial step in ensuring its healthy growth and longevity. By following the step-by-step guide outlined in this article, you can successfully repot your shiso plant and provide it with a suitable environment for thriving. Remember to choose an appropriate pot size, use fresh potting soil, and provide adequate care to enjoy a flourishing shiso plant in your garden or kitchen!