How to Grow Ornamental Basil
Ornamental Basil
Ocimum basilicum var. ornamentale
herbOrnamental basil is a decorative variety of sweet basil bred for its striking foliage and flower colors rather than culinary intensity. It features vibrant purple, red, or variegated leaves with attractive flower spikes that bloom in shades of pink, purple, or white. While edible, these varieties are prized primarily for landscape beauty and container gardening.
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Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 10-11; can be grown as an annual in zones 3-9
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Growth Stages
Seedling
2-3 weeksTwo cotyledons emerge with true leaves following. Plants are delicate with light-colored foliage.
Provide bright light to prevent leggy growth. Maintain consistent moisture. Keep at 70-75°F. Fertilize lightly with diluted balanced fertilizer when second set of true leaves appears.
Vegetative Growth
3-4 weeksPlant develops bushy structure with increasingly vibrant leaf color. Distinctive pigmentation becomes prominent in purple and red varieties.
Pinch off growing tips when plant reaches 6 inches to encourage bushiness. Maintain full sun exposure. Water consistently. Feed every 2-3 weeks with balanced fertilizer or organic compost tea.
Pre-flowering
2-3 weeksPlant reaches mature size and density. Foliage reaches peak color intensity. Flower buds begin forming at stem tips.
Continue pinching for fuller form if desired, or allow flowering to begin. Remove any dead leaves. Maintain moisture and feeding schedule. Monitor for pests in warm climates.
Flowering
4-8 weeks (extends with deadheading)Dense flower spikes emerge in pink, purple, or white depending on variety. Flowers attract pollinators. Foliage remains ornamental with peak coloration.
Deadhead spent flowers to encourage continuous blooming and maintain ornamental appeal. Water regularly during blooming. Continue light feeding. Enjoy as cut flowers in arrangements.
Seed Production
2-3 weeksIf left undeadheaded, flowers mature to seed pods. Plant begins to decline in ornamental value as foliage becomes sparse.
Allow selected flowers to remain for seed collection if desired. Otherwise, continue deadheading to extend visual interest. Reduce watering slightly if allowing senescence.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Hand-pick in early morning. Use neem oil or insecticidal soap. Plant in areas with good air circulation.
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Spray leaves with water to dislodge. Apply neem oil or horticultural oil. Increase humidity. Remove heavily infested leaves.
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Use blue sticky traps. Apply insecticidal soap or neem oil. Encourage beneficial insects. Remove affected flowers.
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Use yellow sticky traps. Spray with neem oil or insecticidal soap. Increase air circulation. Remove heavily infested foliage.
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Ensure excellent drainage. Avoid overhead watering. Remove affected plants. Use disease-resistant varieties when available. Sterilize tools between plants.
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Improve air circulation. Avoid overhead watering. Apply sulfur dust or baking soda spray (1 tbsp per gallon water with spreader). Remove affected leaves.
Uses
Visual Garnish & Mild Flavoring
CulinaryWhile less intensely flavored than culinary basil, ornamental varieties provide attractive edible garnishes for salads, cocktails, and plated dishes. The flowers are particularly prized for their visual appeal in culinary presentations. [source]
Ornamental Container & Garden Displays
HouseholdOrnamental basils serve as striking focal points in mixed borders, container gardens, and hanging baskets. Their vibrant foliage and flower colors add visual interest throughout the growing season. [source]
Cut Flowers & Floral Arrangements
HouseholdThe colorful flower spikes last well in water arrangements and add unique texture to fresh or dried floral designs. Stems can be dried for long-lasting decorative appeal. [source]
Dried Arrangements & Crafts
CraftOrnamental basil flowers and foliage dry exceptionally well, retaining color and form. Use in dried arrangements, potpourri, or craft projects. [source]
Pollinator Support
WildlifeOrnamental basil flowers are excellent nectar sources for bees, butterflies, and hummingbirds, supporting beneficial insect populations in gardens. [source]
Harvest Tips
For ornamental purpose: pinch and deadhead throughout the season to maintain shape and encourage branching. For culinary use: harvest young leaves before flowers fully open for best flavor. Pinch flowers and upper stems in early morning after dew dries. Never remove more than one-third of plant at once. Ornamental varieties are milder than culinary basil, so use sparingly in cooking or primarily for visual garnish.
Fun Facts
- 🌱 Ornamental basil varieties were specifically developed to combine the hardiness and growth habit of basil with the dramatic coloring of decorative plants, representing the intersection of culinary and ornamental gardening.
- 🌱 The aromatic oils in basil leaves remain present even in ornamental varieties, releasing a pleasant fragrance when foliage is brushed or handled, making them appealing to touch even in garden displays.
- 🌱 Purple and red ornamental basils contain anthocyanins, the same antioxidant compounds found in blueberries and red wine, which contribute to both their striking color and any potential health benefits when consumed.
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