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Opal Basil Seeds – Deep Purple Sweet Basil for Culinary Use & Ornamental Gardens

Heirloom - Non-GMO - Reliable Germination

$2.99 USD
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What Makes Survival Garden Seeds Different - non-GMO heirloom seeds

Add bold color and gentle flavor to your herb garden with Opal Basil Seeds from Survival Garden Seeds. This beautiful purple basil variety is prized for its glossy, dark violet leaves with soft green highlights and delicate pink blooms. Both ornamental and flavorful, Opal Basil offers a milder, slightly sweet taste that brings a unique twist to pestos, salads, and Mediterranean-inspired dishes.

Perfect for gardeners who love beauty and function, this variety thrives in containers, raised beds, garden soil, or hydroponic setups. Its vibrant foliage enhances outdoor plantings or indoor windowsill gardens, while its blooms draw bees and beneficial pollinators, enriching your garden ecosystem.

Vibrant, Flavorful, and Decorative:

  • Deep purple foliage adds visual contrast to garden beds and kitchen gardens.
  • Mild, sweet flavor ideal for fresh or cooked dishes.
  • Excellent for pesto, pasta, infused oils, and herbal teas.
  • Soft pink flowers attract pollinators and add ornamental charm.

Why Customers Love Opal Basil:

  • Dual-purpose herb: beautiful to grow, delicious to use.
  • Compact and productive for continuous harvests.
  • Easy to grow indoors or outdoors, even for beginners.
  • Adds color and fragrance to both culinary and landscape settings.

How to Grow:

  • Start seeds indoors 4–6 weeks before the last frost or sow directly outdoors once temperatures stay above 60°F.
  • Plant ¼ inch deep in well-drained soil and keep consistently moist.
  • Provide full sun (6–8 hours daily) for best color and growth.
  • Pinch back early leaves to promote bushy plants and delay flowering.

Harvest & Use:
Harvest leaves regularly once plants are 6–8 inches tall. Use fresh for salads, pesto, and garnishes, or dry for herbal blends. Its rich hue and delicate flavor make Opal Basil a favorite for gourmet presentation and garden beauty alike.

Net Wt. 400MG

Heirloom Herb Seeds

All of our seeds are open-pollinated, non-GMO, heirloom varieties with tested germination rates

Specifications

  • Botanical Name
    Ocimum Basilicim, Purpurascens
  • Seasonality
    Annual
  • Planting Zones
    3-11
  • Light
    Full Sun
  • Soil Temp for Germination
    70-80 Degrees F
  • Germination Time
    5-10 Days
  • Planting Depth
    1/4 Inch
  • Plant Size
    12-18 Inches Tall, Up to 18 Inch Spread
  • Days to Bloom or Harvest
    50-60 Days
  • Growing Instructions
    Best started indoors and transplanted after the last frost. Can also be grown entirely indoors with sufficient light. Begin to harvest after 6-8 leaves have formed. Frequent pruning encourages bushy growth. Space plants 16-24 inches apart.
  • Seed Saving Instructions
    Collect brown and spent flower heads and allow them to dry in a warm spot. Crush dried flowers over a fine mesh strainer to separate seeds from the chaff. Label and store seeds in a dry dark spot for up to 5 years.
  • Seed Count (approximate)
    356 to 420

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Why Choose Survival Garden Seeds

At Survival Garden Seeds, we believe in preparing today for tomorrow’s peace of mind. That’s why we offer only heirloom, non-GMO, and untreated seeds you can trust to nourish your family and support a sustainable lifestyle. As a family-owned American company, we’re committed to providing seeds that grow strong and true—helping you cultivate health, resilience, and beauty in your garden.

Frequently Asked Questions

Are your seeds heirloom and open-pollinated?

Yes. All of our seeds are heirloom, open-pollinated varieties, which means they can produce seeds that grow true to type and are suitable for seed saving.

You can learn more about open-pollinated, heirloom, and non-GMO seeds in our Survival Garden Training blog.

Are your seeds non-GMO?

Yes. All Survival Garden Seeds are 100% non-GMO. Our seeds are open-pollinated heirloom varieties and are never genetically modified.

Are your seeds treated with chemicals?

No. Our seeds are completely untreated and free from chemical coatings, fungicides, or synthetic treatments.

How do I know my seeds are fresh?

Every seed packet includes a packed-for date, and we germination-test each seed lot before packaging to ensure high viability.

What is the shelf life of your seeds?

Most seeds remain viable for 3 to 5 years or longer when stored properly in a cool, dry place away from light and moisture.

In what USDA hardiness zones can I grow your seeds?

Our varieties are selected to grow successfully across USDA Hardiness Zones 3 through 10. Each packet includes variety-specific planting guidance and germination tips.