🐚Micronesian & Melanesian Medicine

Fijian Passion Flower (Kau Tabu)

Passiflora suberosa

About Fijian Passion Flower (Kau Tabu)

Fijian Passion Flower (Kau Tabu) (Passiflora suberosa) is a herb used in the Micronesian & Melanesian Medicine tradition to help with Anxiety, Insomnia, Fever, and Headache, among 1 other condition it addresses. The flowers are the part traditionally used, taken internally.

Botanical background

Passiflora suberosa is a species of passionflower that is native to the Americas. Its range stretches from Florida and the Lower Rio Grande Valley of Texas in the United States south through Mexico, Central America, and the Caribbean to South America. It is commonly known as corkystem passionflower due to the corkiness of older stems. The fruit is not hardy and transitions from green to indigo, purple and, lastly, black as it ripens. This species is

Source: Wikipedia, via iNaturalist

Parts used

Flowers · internal
🍵

Tea / Infusion

1–3 cups daily
  • Steep 1–2 tsp of dried Fijian Passion Flower (Kau Tabu) in freshly boiled water for 5–10 minutes.
  • Cover while steeping.
  • Strain and drink.
💧

Tincture

20–40 drops in water, 2–3× daily
  • Pack dried Fijian Passion Flower (Kau Tabu) into a jar and cover with 40–60% alcohol.
  • Seal and steep for 4–6 weeks, shaking daily.
  • Strain and store in a dark dropper bottle.
💊

Powder / Capsule

500 mg – 1 g, 1–3× daily
  • Grind dried Fijian Passion Flower (Kau Tabu) into a fine powder.
  • Fill size 00 capsules or stir into smoothies or honey.
🛁

Herbal Bath

2–3× per week as needed
  • Brew 4–6 tbsp of Fijian Passion Flower (Kau Tabu) in 1 litre of hot water for 15 minutes, strain, and add to a warm bath.
  • Soak for 20–30 minutes.

Pregnancy, Breastfeeding & Children

No herb-specific pregnancy/child safety research is documented for Fijian Passion Flower (Kau Tabu) in our references — the guidance below is based on its general effect category, not research on Fijian Passion Flower (Kau Tabu) itself. Always confirm with a midwife, doctor, or pediatrician.

Pregnancy

Use Caution

This herb is associated with calming/sedative activity. CNS-active herbs are generally used cautiously and short-term in pregnancy rather than as a routine remedy — this is a general, mechanism-based caution, not herb-specific research.

Breastfeeding

Use Caution

Sedative herbs can cause infant drowsiness via breast milk — generally used cautiously and briefly, watching the baby for excess sleepiness or poor feeding.

Children

Use Caution

Sedative herbs are dose-sensitive in children, whose smaller body size makes effects less predictable — start low and use short-term under guidance.

Contraindications

  • CNS medications (benzodiazepines, SSRIs, MAOIs) — may potentiate sedative or serotonergic effects

Warnings

⚠️ Sedatives & Antidepressants

May potentiate the effects of sedative, anxiolytic, or antidepressant medications. Use with caution alongside any CNS-active drugs.

⚠️ Allergic Reactions

Discontinue immediately if you experience rash, itching, swelling, or difficulty breathing.

⚠️ Not Medical Advice

This information is for educational purposes only. Always consult a qualified healthcare provider before using herbal remedies.

Drug & herb interactions

May have a calming/sedative effect

Watch for: Benzodiazepines, sleep medications, other sedative herbs, and alcohol

Combined CNS-depressant effects can cause excessive drowsiness or impaired coordination.

Where to find in nature

Native region

Various global regions

Climate

Varied

Habitat

Cultivated in traditional medicinal gardens, botanical gardens, and herb farms worldwide

🌿 To see Fijian Passion Flower (Kau Tabu) growing, visit botanical gardens, university plant collections, or specialist herb nurseries near you. If foraging in the wild, always work with an expert identifier — never consume a plant you are not 100% certain of.

Where to buy

In store

  • Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
  • Naturopathic clinics and integrative medicine practices
  • Specialist herbal apothecaries and herbalist practices
  • Farmers markets with herb vendors

Online

iHerb

Wide selection of standardised extracts, capsules, and powders with lab testing

Mountain Rose Herbs

Premium bulk dried herbs — certified organic, ethically sourced

Starwest Botanicals

Large selection of certified organic bulk herbs and powders

Herb Pharm

High-quality liquid extracts and tinctures, rigorous quality standards

Amazon

Convenient — verify brand certifications and check third-party testing

Etsy

Small-batch artisan herbalists, hand-harvested and wildcrafted herbs

Quality tips

When buying Fijian Passion Flower (Kau Tabu), look for: certified organic labelling, clearly stated country of origin, third-party lab testing for heavy metals and pesticides, and a batch expiry date. Standardised extracts offer consistent dosing; bulk dried herbs are more economical for regular use. Avoid very cheap, unlabelled products — quality varies enormously.