Basilico Mostruoso Basil (Ocimum basilicum 'Mostruoso') Seeds

Basilico Mostruoso Basil (Ocimum basilicum ‘Mostruoso’) is a dramatic large-leaf basil variety known for its oversized foliage, lush mounding habit, and vigorous growth. The impressive broad leaves create eye-catching texture in garden beds and containers, bringing bold greenery to herb gardens, borders, and ornamental plantings. A standout foliage plant that thrives in warm weather, it grows rapidly and forms a dense, leafy structure throughout the season.

Features

• Oversized broad green leaves with bold ornamental impact.
• Forms large, vigorous, leafy mounds in warm weather.
• Great foliage accent for garden beds and decorative planters.
• Thrives in full sun and warm summer conditions.
• Non-GMO heirloom Ocimum basilicum ‘Mostruoso’ variety.
• Suitable for herb gardens, borders, and container displays.

Specifications

• Common Name: Basilico Mostruoso Basil
• Scientific Name: Ocimum basilicum ‘Mostruoso’
• Plant Type: Annual leafy herb
• USDA Zones: 4–11 (grown as annual)
• Foliage: Extra-large bright green leaves
• Height: 18–30 inches
• Spread: 12–24 inches
• Growth Habit: Dense, leafy mounded form
• Heirloom: Yes
• GMO Status: Non-GMO
• Organic: Not certified organic
• Light Requirements: Full sun
• Soil Preference: Well-drained fertile soil
• Water Needs: Moderate and even moisture
• Maintenance Level: Low
• Plant Spacing: 12–18 inches
• Seed Viability: 3–4 years stored cool and dry

Planting Guide

• Start indoors 4–6 weeks before last frost or direct sow outdoors after frost.
• Sow 1/4 inch deep in warm, well-drained soil.
• Provide warmth (70–75°F) for best germination (5–14 days).
• Transplant seedlings outdoors after frost when soil warms.
• Place in full sun for dense foliage and compact mounding growth.
• Water evenly; avoid constantly soggy soil.
• Pinch growing tips to encourage bushy form and larger leaf production.
• Grow in containers or garden beds with regular watering and sun exposure.