Basil Dark Opal Seeds – Heirloom Ornamental & Culinary Herb

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Clear duties overview for US customers at checkout: Grand Seeds covers 50% tariffs on your order!

In Stock - Shipped within 5 days

Contains about 1 gram of seeds

$2.20

SKU: GS-7754-BAS-DT

Free shipping on orders over $50 (in Canada)

Organicly grown

Non GMO

Description

Dark Opal Basil (Ocimum basilicum) is an award-winning heirloom variety famous for its rich, deep purple-to-maroon foliage and delicate lavender blooms. Delivering a classic sweet basil flavor with subtle cinnamon and clove notes, it adds striking visual appeal to pestos, herbal vinegars, fresh salads, and garnishes. Its bushy, colorful habit makes it an outstanding choice for both culinary herb patches and ornamental garden borders.

Specifications

Plant Name: Dark Opal Basil (Ocimum basilicum 'Dark Opal')
Cultivar Type: Heirloom, Open-Pollinated
Plant Class: Herb (Annual)
Color: Deep purple-maroon leaves, dark purple stems, light lavender flower spikes
Plant Characteristics: Compact, bushy growth habit; smooth dark foliage, highly aromatic sweet-spice flavor
Suitable Space: Herb gardens, sunny borders, patio containers, raised beds, window boxes
Season: Warm Season (Spring/Summer)
Best Time for Sowing (Zone 6b): Start indoors early to mid-April (6–8 weeks before last spring frost); transplant outdoors late May to early June once temperatures stay consistently above 10°C (50°F).
Sunlight: Full Sun (6+ hours direct light daily)
Watering Needs: Moderate (requires rich, well-draining soil; keep evenly moist, avoid waterlogging)
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What is included?

Contains about 1 gram of seeds

Check out the growing specs for the specific organic heirloom seeds you bought.

Good to know

Stunning deep purple leaves create striking visual contrast in dishes, garden beds
All-America Selections (AAS) winner recognized for color stability, performance
Excellent for infusing violet-pink color into oils, herbal vinegars, teas

Highly sensitive to cold weather, late frosts
Occasional green-leaf reverting leaves should be pinched out to maintain solid purple foliage

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