Shiso Seeds - Britton (Perilla frutescens)

Britton Shiso (Perilla frutescens) is a decorative herb grown for its striking bi-colored foliage, featuring purple undersides and deep green leaves on top. Its compact, branching form adds vibrant contrast to garden beds, herb borders, and patio containers. Small late-season blooms attract bees and beneficial pollinators, making Britton Shiso both visually appealing and ecologically valuable in warm-season gardens.

Features

• Distinct purple-and-green ornamental foliage.
• Non-GMO Perilla frutescens seed variety.
• Compact branching habit ideal for borders and containers.
• Late-season flowers attract bees and other pollinators.
• Adds colorful texture to herb, sensory, and ornamental gardens.
• Thrives in warm, sunny growing conditions.

Specifications

• Common Name: Britton Shiso, Perilla
• Scientific Name: Perilla frutescens
• Plant Type: Warm-season annual herb
• USDA Zones: 4–11 (grown as annual)
• Foliage Color: Green top side, purple underside
• Bloom Color: Pale lavender to white
• Height: 18–36 inches
• Growth Habit: Upright and branching
• Heirloom: Yes
• GMO Status: Non-GMO
• Organic: Not certified organic
• Light Requirements: Full sun to part shade
• Soil Preference: Well-drained garden soil
• Water Needs: Moderate
• Days to Maturity: 65–85 days
• Heat Tolerance: High
• Cold Tolerance: Frost sensitive
• Plant Spacing: 12–18 inches
• Seed Longevity: 2–3 years stored cool and dry

Planting Guide

• Start indoors or direct sow after frost has passed.
• Surface-sow seeds; light is required for germination.
• Gently press seeds into soil—do not bury.
• Keep soil evenly moist until germination (7–14 days).
• Provide bright light and warm temperatures during early growth.
• Transplant outdoors when nighttime temps stay above 55°F (13°C).
• Grow in full sun for strongest foliage coloring.
• Water moderately; avoid waterlogged soil.
• Pinch tips to encourage branching and bushier plants.
• Allow late-season blooms to feed pollinators or set seed for self-sowing.