Basil Seeds – Dark Opal
Basil Seeds – Dark Opal
Basil Seeds – Dark Opal
Basil Seeds – Dark Opal

Dark Opal Basil Seeds – Herbal Plant

Suitable for home gardening use
$16.99 USD
$16.99 USD
10% OFF Buy 2 Seed Packs
15% OFF Buy 4 Seed Packs
25% OFF Buy 10 Seed Packs
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Product description

Dark Opal Basil Seeds

Grow award-winning Dark Opal Basil from premium-quality seeds. This striking heirloom herb produces deep purple to burgundy foliage with a rich, sweet basil aroma, making it perfect for culinary use, edible landscapes, herb gardens, containers, and ornamental borders.

Award-Winning Heirloom Deep Purple Foliage Culinary Herb Pollinator Friendly

Key Features

Rich Purple Leaves

Produces vibrant dark purple to burgundy foliage that adds striking color to herb gardens and ornamental plantings.

Sweet Basil Flavor

Offers the classic sweet basil taste and fragrance, ideal for pesto, salads, sauces, vinegars, and fresh garnishes.

Beautiful Garden Accent

Combines ornamental beauty with culinary value, making it perfect for borders, containers, and mixed herb gardens.

Pollinator Friendly

Late-season flower spikes attract bees, butterflies, and other beneficial pollinators to the garden.

Growing Highlights

USDA Zones 10–11 Perennial
Elsewhere Annual
Sunlight Full Sun
Watering Moderate
Mature Height 18–24 in
Harvest 60–75 Days
Germination 5–10 Days

Specifications

Scientific Name Ocimum basilicum 'Dark Opal'
Common Name (US) Dark Opal Basil
Seed Type Herb Seed
Plant Type Tender Perennial / Annual Herb
USDA Zones 10–11 (Perennial); Grown as an Annual in Cooler Regions
Planting Season Spring
Harvest Season Summer through Fall
Sowing Depth ⅛ inch
Germination 5–10 Days at 70–85°F (21–29°C)
Sunlight Full Sun
Soil Rich, Well-Drained Soil
Watering Moderate
Mature Height 18–24 inches
Plant Spacing 10–12 inches

Growing Guide

Step 1: Sow seeds indoors 4–6 weeks before the last frost or direct sow outdoors after the soil has warmed.
Step 2: Cover seeds lightly with soil and keep the growing medium consistently moist during germination.
Step 3: Grow plants in full sun with fertile, well-drained soil for the best foliage color and flavor.
Step 4: Harvest leaves regularly and pinch flower buds to encourage bushier growth and prolonged leaf production.

Dark Opal Basil Seeds

Enjoy the beauty of rich purple foliage and the classic sweet basil flavor with Dark Opal Basil—an award-winning herb that's perfect for cooking, edible gardens, and ornamental landscapes.