How Quickly Does Shiso Plant Grow?

Shiso, also known as Perilla, is a popular herb in Asian cuisine. It is native to East Asia and belongs to the mint family. Shiso leaves are commonly used as a garnish, in salads, sushi, and as a flavoring agent in various dishes. Apart from its culinary uses, shiso is also known for its medicinal properties and is used in traditional herbal medicine.

If you are considering growing shiso in your garden or indoors, it is essential to understand how quickly it grows. This article will provide you with insights into the growth rate of shiso plants and tips to make them thrive.

Germination and Seedling Stage

Shiso plants can be grown from seeds. The germination process typically takes around 7 to 14 days. During this stage, it is important to provide the seeds with proper moisture and warmth for successful sprouting. You can start the seeds indoors in seed trays or pots filled with well-draining soil. Sow the seeds at a depth of approximately ¼ inch and keep the soil consistently moist.

Once the seeds have germinated, they will develop into seedlings. At this stage, shiso plants require ample sunlight and adequate watering. If you are growing them indoors, ensure they receive at least 6-8 hours of sunlight each day. If natural sunlight is limited, you can supplement it with fluorescent grow lights placed about 6 inches above the seedlings.

Vegetative Growth

After the seedling stage, shiso plants enter a phase of rapid vegetative growth. During this phase, they develop multiple branches and leaves, forming a bushy appearance. The growth rate of shiso plants can vary depending on various factors such as temperature, sunlight exposure, soil quality, and care provided.

In optimal conditions, shiso plants can reach a height of about 1 to 2 feet within 4 to 6 weeks. However, it is important to note that individual growth rates may vary. Some plants may grow faster while others may take a bit longer.

To promote healthy and vigorous growth, it is crucial to provide shiso plants with the right environmental conditions. Shiso prefers well-draining soil with a pH level between 6.2 and 7.0. Ensure the soil is rich in organic matter and provide regular watering to keep the soil consistently moist but not waterlogged.

Flowering and Seed Production

Shiso plants typically start flowering after 8 to 10 weeks of growth. The flowers are small and come in shades of pink, white, or purple, depending on the variety. While the flowers are visually appealing, they can also attract pollinators such as bees and butterflies to your garden.

After the flowers are pollinated, shiso plants produce seed pods containing small black seeds. If you wish to harvest seeds for future plantings, allow the seed pods to fully mature and dry on the plant. Once dried, you can collect the seeds and store them in a cool, dry place for future use.

Harvesting Leaves

While shiso plants are growing and before they flower, you can start harvesting their leaves for culinary purposes. The leaves have a unique flavor profile with hints of mint, basil, and anise. They can be used fresh or dried for later use.

When harvesting shiso leaves, it is recommended to pick them from the top of the plant first. This encourages bushier growth as it prevents the plant from becoming too tall and leggy. You can either harvest individual leaves or cut off whole stems as needed.

Tips for Optimal Growth

To ensure optimal growth of shiso plants, here are some tips to keep in mind:

Provide Adequate Sunlight: Shiso plants thrive in full sunlight or partial shade. Ensure they receive at least 6-8 hours of sunlight each day.
Water Regularly: Shiso plants prefer consistently moist soil. Water them regularly, especially during dry spells, but avoid overwatering as it can lead to root rot.
Fertilize Occasionally: Use a balanced organic fertilizer once a month to provide essential nutrients to the plants.
Prune Regularly: Pruning helps maintain the shape and bushiness of shiso plants. Pinch off the tips of the stems to encourage branching.
Protect from Extreme Temperatures: Shiso plants are sensitive to extreme temperatures. Protect them from frost and provide shelter during hot summer days.

By following these tips and providing proper care, you can ensure healthy growth and abundant harvests of shiso leaves.

Conclusion

Shiso plants have a relatively fast growth rate, with seeds germinating in 7 to 14 days and reaching a height of 1 to 2 feet within 4 to 6 weeks. They thrive in well-draining soil, full sunlight or partial shade, and regular watering. By providing optimal conditions and care, you can enjoy a bountiful harvest of shiso leaves for culinary purposes. So why not give it a try and add this flavorful herb to your garden or indoor herb collection?