Passionflower
Passiflora incarnata
Passionflower is best known as a calming nervine used to ease mild anxiety, restlessness, and trouble sleeping.
Primary Use
Mild Anxiety Support
Common Forms
Tea, Capsule
Typical Dose
1-2 g dried herb per cup
Time to Effect
2-4 weeks
Overview
Passionflower has a long history of traditional use in the Americas and later in European herbalism as a soothing herb for nervous tension, agitation, and sleeplessness. It is often prepared as a tea, tincture, or capsule and is commonly used in evening formulas.
Modern use centers on mild anxiety, sleep support, and nervous digestive upset linked to stress. It is not usually considered a heavy sedative, but many people find it helpful for taking the edge off mental overactivity and supporting more restful sleep.
How It Works
Passionflower appears to influence signaling in the central nervous system, especially pathways related to gamma-aminobutyric acid (GABA), a neurotransmitter associated with calm and reduced neuronal excitability. Flavonoids and other plant constituents are thought to contribute to these effects.
In plain language, it may help the brain shift away from a keyed-up state, making it easier to relax, settle, and sleep.
What It's Used For
Mild Anxiety Support
Passionflower is commonly used for mild nervousness and tension. Small human studies and traditional use suggest it may help reduce subjective anxiety without causing heavy sedation in some people.
Sleep Quality
Passionflower may help people who have difficulty winding down at night, especially when stress is a factor. Evidence is modest but supportive for mild improvements in sleep quality.
Restlessness and Irritability
As a classic nervine, passionflower is often used when a person feels mentally overactive, tense, or fidgety. This benefit is supported more by traditional use than by large clinical trials.
Dots indicate strength of research evidence (5 = strongest)
Disclaimer: This information is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider before starting any new supplement, especially if you have a medical condition or take medications.
Last updated: April 2026