Holy Basil (Tulsi)

At a Glance

Common name

Holy Basil (Tulsi)

Scientific name

Ocimum tenuiflorum

Family

Lamiaceae

Region

India

Plant part

Leaves, Flowering tops

Caffeine

Caffeine Free

Evidence

Limited

Safety review

Safety information on file

Botanical Description

An upright aromatic annual or short-lived perennial 30–60 cm tall with small oval, slightly toothed green (or purple-tinged) leaves and spikes of tiny tubular pink-purple flowers. Closely related to culinary basil but more pungent and peppery.

Also known as: Tulsi, Sacred Basil, Tulasi

Historical Background

Tulsi ('the incomparable one') has been revered in Hindu tradition for thousands of years as a sacred plant of the goddess Lakshmi and a household protector. In Ayurveda it is a rasayana (rejuvenative) for the lungs, mind, and immunity, and daily tulsi tea is a widespread devotional and wellness practice.

Earliest recorded uses: Vedic and Ayurvedic texts; Charaka Samhita classifies tulsi among revered plants.

Cultural significance: Tulsi is grown in courtyards across India and worshipped daily; its name means 'the incomparable one.' Few herbs carry such deep living religious significance, bridging kitchen, temple, and clinic.

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Flavor & Aroma

Aroma: Spicy, peppery, clove-like, green

Tea Preparation

Modern Evidence

Tulsi has a long Ayurvedic tradition as an adaptogen and respiratory herb. A number of small human trials suggest modest effects on stress markers and metabolic parameters, but evidence is limited and studies are small and heterogeneous. It is not a treatment for any disease.

Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.