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Ocimum basilicum 'Dark Opal'

Family Name: Lamiaceae (Labiatae)
Full Sun: 6-8h Semi-Shade Moderate Water Herb & Spice Annual Herbaceous


Family Name
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Classifications and Characteristics

Plant Division Angiosperms (Flowering Seed Plants)
Plant Growth Form Herbaceous Plant
Lifespan (in Singapore) Annual
Mode of Nutrition Autotrophic
Maximum Height 0.6 m
Maximum Plant Spread / Crown Width 0.3 m

Description and Ethnobotany

Foliage Dark purple to black leaves are elliptic with a toothed leaf margin. In Singapore, the dark colour may fade to olive green along the leaf margin.
Others - Plant Morphology This cultivar was bred by researchers at the University of Connecticut (USA) in the 1950s. It is a type of sweet basil.
Similar This cultivar is similar to 'Purple Ruffles' but the latter is darker purple and more glossy.
Cultivation This cultivar grows best under at least 6 hours of bright light in moist, well-drained soil. Promptly remove the flower buds to promote bushy, leafy growth.
Ethnobotanical Uses Edible Plant Parts (Edible Leaves)
Food (Herb and Spice)

Landscaping Features

Plant & Rootzone Preference - Tolerance Moist Soils, Well-Drained Soils, Fertile Loamy Soils
Landscape Uses Container Planting
Thematic Landscaping Economic Garden

Plant Care and Propagation

Light Preference Full Sun, Semi-Shade
Water Preference Moderate Water


Mature Foliage Colour(s) Green - Light Green, Purple
Mature Foliage Texture(s) Smooth
Foliar Type Simple / Unifoliate
Foliar Arrangement Along Stem Alternate
Foliar Attachment to Stem Petiolate
Foliar Shape(s) Non-Palm Foliage
Foliar Venation Pinnate / Net
Foliar Margin Serrate / Toothed
Foliar Apex - Tip Acute
Foliar Base Rounded / Obtuse

Floral (Angiosperm)

Flower & Plant Sexuality 1 Bisexual Flowers

Image Repository



Master ID 32742
Species ID 7154
Flora Disclaimer The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes.
Species record last updated on: 20 August 2021.