History
Red Rubin Basil is one of the most visually striking heirloom herbs you can grow — a deep purple-leafed basil with the rich, sweet-spicy flavor of classic Italian basil and the dramatic ornamental presence of a garden showpiece. Developed from the Dark Opal basil lineage, Red Rubin produces consistently deep burgundy-purple foliage with ruffled edges and a fragrance that is unmistakably basil — sweet, clove-forward, and intoxicating. In the kitchen it is as versatile as any sweet basil; in the garden it is a conversation piece. Planted alongside green herbs and vegetables, the deep purple leaves create a striking visual contrast that makes the entire garden more beautiful. Open-pollinated and non-GMO.
Plant Profile
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Days to Maturity: 60–75 days from transplant to first harvest
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Plant Size: Upright, bushy plants 18–24 inches tall
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Leaves: Large, ruffled, deep burgundy-purple leaves with a rich sweet-spicy basil fragrance
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Flowers: Pink-lavender flower spikes attractive to bees and butterflies
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Plant Type: Open-pollinated, non-GMO heirloom warm-season annual
Flavor Profile
Red Rubin Basil delivers the rich, sweet, clove-forward flavor of classic Italian basil with a slightly more complex, spiced depth that comes through in both fresh and cooked applications. The flavor is bold and aromatic — excellent in pesto, salads, and pasta, and exceptional for infusing into vinegars and oils where the deep purple color creates a stunning ruby-red infusion. The leaves hold their flavor well when briefly cooked and dry beautifully for year-round use.
Growth Type & Harvest Yields
Red Rubin is a vigorous, productive annual that thrives in heat and full sun. Plants develop an upright, bushy habit and produce large, deeply colored leaves throughout the season. Regular harvesting keeps plants productive and delays flowering — pinch stems just above a leaf node and the plant branches out, increasing yield. The pink-lavender flower spikes are attractive to bees and butterflies. A planting of 4–6 plants provides generous harvests for fresh use, infused vinegars, drying, and ornamental cutting all season long.
Disease Resistance
- Good overall garden vigor when grown in warm, sunny conditions with proper airflow
- Proper spacing reduces risk of powdery mildew and leaf spot in humid conditions
- Water at soil level — wet foliage invites fungal issues
- Tip: Grow in raised beds or containers with excellent drainage for best results
Growing Tips & Planting Dimensions
- Spacing: 10–12 inches between plants; 18–24 inches between rows
- Sow depth: 1/4 inch — cover lightly with fine seed-starting mix; basil germinates best with light warmth and consistent moisture
- Germination: 7–14 days at soil temps of 65–70°F
- Full sun — at least 6–8 hours of direct sunlight daily; more sun = deeper, richer leaf color
- Prefers rich, well-drained soil; keep evenly moist but never waterlogged
- Start indoors 4–6 weeks before last frost; transplant after nights stay consistently above 50°F
- Pinch growing tips regularly to encourage bushy, productive plants
- Remove flower buds to maintain leaf production and peak color
🌱 Good Things Come in Small Packages
Red Rubin Basil seeds are small — but don't let their size fool you. These little seeds carry everything needed to grow into vigorous, fragrant plants. They just ask for a little extra care at germination. Follow these steps and you'll be well on your way.
How to Germinate Successfully:
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Start with the right foundation. Use a fine seed-starting mix — not garden soil or coarse potting mix. Sift it if needed. Small seeds need a smooth, even surface to make good contact and germinate reliably.
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Cover lightly — just barely. Press seeds onto the moist surface and cover with no more than 1/8 inch of finely sifted mix. These seeds don't need light to germinate but they don't want to be buried either.
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Mist, don't drench. Use a spray bottle to keep the surface evenly moist. Watering from above can wash small seeds away before they ever get started.
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Warmth is your friend. These seeds germinate best at 65–70°F — basically normal room temperature. A heat mat can help if your space runs cool.
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Trap the humidity. Cover your tray with a humidity dome or a loose piece of plastic wrap. This keeps moisture and warmth stable while you wait.
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Give them time. Keep conditions consistent, resist the urge to overwater, and trust the process — they will sprout.
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Thin with scissors, not fingers. Once seedlings appear, snip extras at the soil line rather than pulling. These roots are close together and pulling one can disturb its neighbors.
When to Plant
Start seeds indoors 4–6 weeks before your last frost date. Transplant outdoors after frost danger has passed and soil temperatures are consistently above 60°F. Find your frost dates and hardiness zone at the USDA Plant Hardiness Zone Map.
Companion Plants & Mutual Benefits
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Tomatoes — the classic pairing; basil attracts pollinators and the purple-red contrast against tomato foliage is stunning
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Peppers — similar heat-loving growing conditions; the color contrast makes a beautiful raised bed combination
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Marigolds — orange marigolds against deep purple basil leaves — one of the most striking color combinations in the edible garden
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Green Basils — plant Red Rubin alongside Genovese or Flat Leaf for a dramatic two-tone herb garden display
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Lettuce — basil provides light shade during the hottest part of summer
How to Enjoy
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Purple Basil Vinegar: Pack fresh leaves into white wine vinegar and let infuse for 2 weeks — the vinegar turns a stunning ruby red with a rich basil flavor
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Pesto: Substitute for sweet basil in pesto for a deeply colored, richly flavored variation
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Caprese & Salads: The deep purple leaves create a striking visual contrast against red tomatoes and white mozzarella
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Infused Oil: Steep in olive oil for a richly flavored, beautifully colored finishing oil
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Garnish: A single Red Rubin leaf transforms the presentation of any dish
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Drying: Dried leaves retain their deep color and flavor — excellent in herb blends and potpourri
Why Gardeners Love Red Rubin Basil
- Dramatic deep burgundy-purple foliage — the most visually striking basil you can grow
- Rich sweet-clove basil flavor with added depth and complexity
- Exceptional for infused vinegars — creates a stunning ruby-red infusion
- Ornamental and edible — beautiful in the garden and the kitchen
- Productive harvests all season long with regular pinching
- Open-pollinated and non-GMO — save your own seeds year after year
Harvest Tips
- Begin harvesting when plants reach 6–8 inches tall — snip stems just above a leaf node
- Harvest in the morning after dew has dried for the strongest fragrance and deepest color
- Never remove more than one-third of the plant at a time for continued production
- Pinch flower buds as they appear to maintain leaf production and deep purple color
- For drying, harvest just before flowering — color and flavor are most concentrated at this stage
- Store fresh basil at room temperature in a glass of water — refrigeration blackens the leaves
Order Today
Add Red Rubin Basil Seeds to your herb garden and grow the most visually dramatic heirloom basil available — bold in the garden, exceptional in the kitchen. Choose your pack size and begin to grow.
