Shiso Herb (Perilla) – Purple (Red)

Shiso Herb (Perilla) – Purpura (Red)

• Growing Temp 65°F – 75°F

• Days to Maturity 60-90 days

Ease of Cultivation and Culinary Use: Shiso, also known as Perilla, is an aromatic herb with striking purple-red leaves that add a unique flavor and visual appeal to dishes. It is relatively easy to grow, thriving in well-drained soil and preferring full sun to partial shade. Shiso is popular in Asian cuisines, especially Japanese, where it is used in salads, sushi, and pickles, imparting a distinctive minty, basil-like flavor that enhances many dishes.

Direct Sowing: For direct sowing, plant Shiso seeds outdoors in the spring after the last frost. Sow the seeds about ¼ inch deep and space them 12-18 inches apart, as the plants can grow quite large. Germination typically occurs within 7–14 days, so keep the soil consistently moist during this period. Ensure the plants receive adequate sunlight to support healthy growth and vibrant leaf color.

Early Sowing for Seedlings: To start early, sow Shiso seeds indoors 6–8 weeks before the last expected frost. Use seedling trays filled with a quality potting mix, covering the seeds lightly with soil. Maintain a temperature around 70°F for optimal germination. Once the seedlings have developed a few true leaves and the danger of frost has passed, transplant them outdoors, ensuring adequate spacing for robust growth.

Harvesting: To determine when Shiso is ready for harvest, look for healthy plants with vibrant purple-red leaves, typically within 60-90 days of planting. You can begin harvesting once the leaves are fully formed and vibrant. The best time to harvest is in the morning after the dew has dried, as this is when the essential oils are most concentrated. Regular harvesting will encourage bushier growth and ensure a steady supply of flavorful leaves throughout the growing season.