Description
50 Seeds per pack
Basil – Purple Dark Opal – Purple Dark Opal Basil
Days to Maturity: 60–90 Days
Sun Requirements: Full Sun to Partial Shade
Botanical Name: (Ocimum basilicum)
Bred at the University of Connecticut in the 1950s, Purple Dark Opal Basil was the result of a collaboration between Professor Joseph M. Lent and John Scarchuck. Their goal was to improve upon the uneven coloration of earlier purple varieties by refining a Turkish basil with promising deep tones. Their efforts paid off—this vibrant, glossy-leaved variety was awarded the bronze medal by All-America Selections in 1962 and has been a garden favorite for decades.
A compact plant reaching 12–18″ in height, Purple Dark Opal Basil stands out with its striking dark purple leaves, touched occasionally by flecks of green on younger growth. The serrated foliage is glossy and veined with rich red, set against dark red stems and topped with delicate lilac-colored blossoms. Slow to bolt and easy to care for, it’s well suited to containers, borders, and landscape beds, where it brings rich color and ornamental beauty.
The flavor of Purple Dark Opal Basil is mild and sweet, with a gentle spiciness that sets it apart from standard green basils. Great when used fresh, it shines in salads, sandwiches, and pasta, and is a beautiful, flavorful garnish. Best added it at the end of cooking to preserve its delicate taste. The edible flowers are equally useful in the kitchen, adding subtle vegetal flavor to a variety of dishes.
Purple Dark Opal Basil provides a good source of vitamins K and C, beta-carotene (a precursor to vitamin A), calcium, potassium, magnesium, and iron. Long appreciated for its digestive support, anti-inflammatory properties, and ability to soothe minor skin irritations, Purple Dark Opal Basil earns a place in any garden!
Planting Instructions for Basil – Purple Dark Opal Seeds
Purple Dark Opal Basil is an annual plant that loves heat and full sun, and is sensitive to frost. Having a lower germination rate than most seeds, make sure to plant extra in each hole.
To start indoors, plant seeds ¼” deep, 2–3 seeds per inch. Thin to 4–8” apart once seedlings are 3–4” tall. If planting to transplant outdoors, start 6 weeks before last frost. For direct seeding in the garden, plant at the same depth and spacing as above. If planting in rows, space rows 18” apart. Seeds should germinate in 8–14 days, in soil temperatures of 65–85°F.
Water moderately and evenly, providing consistent watering throughout the time of growth. Basil is not drought tolerant and can be damaged by lack of water. Regular harvesting will keep production high and can begin once the plant is well established.
To save seeds, let flowers mature and dry most of the way, then snip at the base of the stalk. Collect the stalks in a tall paper bag and dry for 4–6 weeks. Then shake the paper bag and tap the stalks against the inside of the bag to finish freeing the seeds.
FAQ:
What is the historical or notable background of Purple Dark Opal Basil?
Purple Dark Opal Basil was developed in the 1950s at the University of Connecticut by Professor Joseph M. Lent and John Scarchuck. Their goal was to perfect the color consistency of purple basil by refining a Turkish variety. It won a bronze medal from All-America Selections in 1962.
How would you describe the flavor of Purple Dark Opal Basil?
Purple Dark Opal Basil offers a mild, sweet flavor with a gentle spiciness. Unlike standard green basil, it has a more delicate taste that complements fresh dishes. Because of this, it’s best added at the end of cooking to preserve its flavor.
What does Purple Dark Opal Basil look like, and what are its growing habits?
A compact plant reaching 12–18″ in height, Purple Dark Opal Basil features striking dark purple, serrated leaves that are glossy and veined with rich red, occasionally flecked with green on young growth. These vibrant leaves grow along dark red stems, which are topped mid-season with delicate lilac-colored blossoms.
When can I harvest Purple Dark Opal Basil?
You can begin harvesting Purple Dark Opal Basil once the plant is well established, usually around 6–8 inches tall with several sets of leaves. Choose vibrant, healthy leaves and avoid any that are discolored or damaged. Regular harvesting encourages bushier growth and higher yield. For the best flavor, pick leaves before the plant starts to flower, though you can continue harvesting throughout the season as needed.
When is the best time to plant Purple Dark Opal Basil?
When is the best time to plant Purple Dark Opal Basil?
What are common culinary uses for Purple Dark Opal Basil?
Purple Dark Opal Basil is best used fresh in salads, sandwiches, and pasta dishes, where its mild, sweet flavor stands out. Its deep purple leaves also make it a striking garnish. The edible flowers have a subtle vegetal flavor and can be used similarly in fresh dishes.
What’s the best way to store Purple Dark Opal Basil after harvest?
To store fresh Purple Dark Opal Basil short-term, wrap the leaves in a damp paper towel and place them in a sealed bag or container in the refrigerator. For long-term use, finely chop the leaves, pack them into ice cube trays, top with olive oil, and freeze—perfect for adding to cooked dishes. You can also dry the leaves by air drying on a clean surface, using a dehydrator set to 95–115°F (35–46°C), or placing them in a low-temperature oven. Once fully crisp, crumble and store them in an airtight container.
What nutrients does Purple Dark Opal Basil provide?
It’s rich in vitamins K and C, beta-carotene, calcium, potassium, magnesium, and iron—supporting everything from bone health to inflammation reduction.
Does Purple Dark Opal Basil have any ornamental or landscape value?
Absolutely! Its striking purple foliage and soft lilac blooms make it a standout in containers, borders, and decorative garden beds.
Elizabeth K. (verified owner) –
Can we just say gorgeous and YUM!
Christine (verified owner) –
Amazing company!