How to Grow Red Rubine Basil
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Red Rubine Basil
Ocimum basilicum var. purpurascens
herbRed Rubine basil is an ornamental and culinary herb prized for its deep purple-red foliage and mild, slightly spicy flavor. It grows as a compact, bushy annual with striking dark leaves and small purple-pink flowers. This variety is as beautiful in a garden bed or container as it is versatile in the kitchen.
When should you plant Red Rubine Basil in your zone?
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Example Red Rubine Basil timeline · Pittsburgh, PA (Zone 6b)
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Plant Red Rubine Basil
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Red Rubine Basil
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Red Rubine Basil dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives as an annual in zones 2-11; best grown in zones 5-10
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Seedling
2-3 weeksTiny true leaves emerge within 5-10 days; seedlings are delicate with 2-4 leaves visible
Maintain warm soil (70-75°F), high humidity, and bright light. Keep soil moist. Thin seedlings to strongest plants. Avoid overwatering to prevent damping-off.
Vegetative Growth
3-4 weeksPlant develops multiple sets of true leaves; stems thicken; distinctive purple-red coloring becomes apparent. Bushy growth pattern establishes.
Pinch off top leaf nodes to encourage bushiness and prevent early flowering. Ensure consistent moisture and full sun for optimal color development. Feed with balanced fertilizer every 2-3 weeks.
Pre-Flowering
2-3 weeksPlant reaches 8-12 inches tall with full foliage. Purple-red color is most vibrant. Flower buds begin to form at stem tips.
Continue pinching off flower buds to prolong leaf production and bushiness. Maintain regular watering and sun exposure. This stage is ideal for maximum leaf harvest.
Flowering
4-6 weeksSmall tubular purple-pink flowers appear in terminal spikes. Leaves remain harvestable but may become slightly more bitter.
Deadhead flowers to extend leaf production if desired. Allow some flowers to bloom for pollinator attraction and ornamental value. Harvest leaves regularly before flowering begins to keep them tender.
Seed Production & Decline
Until frost or plant senescenceFlowers mature into small seeds. Plant energy redirects to seed development. Foliage quality declines and plants may become woody.
Allow flowers to remain if collecting seeds. Harvest seeds when flower spikes turn brown and dry. In cooler climates, plant typically dies with first frost. In warm zones, plant may persist but benefit from cutting back.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray with water to dislodge; use insecticidal soap or neem oil; encourage ladybugs and parasitic wasps
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Hand-pick in early morning; use pheromone traps; apply neem oil if infestation is severe
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Increase humidity; spray with water; use miticide or insecticidal soap; ensure adequate air circulation
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Yellow sticky traps; spray neem oil or insecticidal soap; remove heavily infested leaves
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and
Remove by hand; use beer traps; apply diatomaceous earth; reduce leaf litter and moisture near plants
Uses
Ornamental Garnish & Salads
CulinaryRed Rubine's striking purple-red leaves make it a stunning garnish for soups, salads, and plated dishes. The mild, slightly peppery basil flavor complements Italian dishes, Thai cuisine, and fresh summer preparations. [source]
Infusions & Beverages
CulinaryFresh or dried Red Rubine leaves can be steeped into herbal teas, lemonades, and cocktails. The deep color imparts visual appeal while the subtle flavor enhances beverages without overwhelming them. [source]
Ornamental Container & Garden Displays
HouseholdRed Rubine basil's vibrant foliage makes it ideal for ornamental containers, window boxes, and flower beds where it pairs beautifully with other plants. Its purple-red leaves provide stunning visual contrast in mixed plantings. [source]
Anti-inflammatory & Digestive Support
MedicinalBasil contains essential oils and compounds with potential anti-inflammatory and digestive benefits. Herbal preparations have been used traditionally to support digestion and reduce mild inflammation. [source]
Pollinator Attraction
WildlifePurple-pink flowers attract bees, butterflies, and other beneficial pollinators to the garden. Allowing some flowers to bloom supports pollinator populations while maintaining ornamental appeal. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Begin harvesting when plant has 6-8 true leaves (4-6 weeks after planting). Pinch or cut from the top to encourage bushiness. Harvest leaves in the morning after dew dries for best flavor. Remove flower buds as they appear to extend leaf production. Regular harvesting (2-3 times per week) keeps plants productive. Leaves are most tender before flowering. Cut stems just above a leaf node to promote branching.
Fun Facts
- 🌱 Red Rubine basil's deep purple-red color comes from anthocyanin pigments, the same compounds that give blueberries and red grapes their vibrant hues.
- 🌱 Despite its ornamental appearance, Red Rubine basil is fully edible and used extensively in Italian cooking where purple basil varieties are traditional in certain regions.
- 🌱 Basil is believed to have originated in Central Africa and India, and has been cultivated for over 5,000 years; Red Rubine is a relatively modern ornamental selection developed to emphasize both flavor and visual appeal.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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