BT-110 · Malvaceae

Hibiscus

Hibiscus sabdariffa
Evidence: LimitedGenerally safe

The plant crossed from West Africa to the Americas with the slave trade; the Mexican name “jamaica” recalls its route through the Caribbean.

Other names
Roselle, karkade, flor de jamaica, bissap
Part used
Calyces
Region
North America
Use
Food, Healing
Hibiscus (Hibiscus sabdariffa): fleshy red calyces
Photo: Aris riyanto · CC BY 4.0 · Wikimedia Commons
In short

What is Hibiscus?

Hibiscus (Hibiscus sabdariffa) is a plant of the Malvaceae family. Traditions that use it: North America. Part used: calyces.

What is Hibiscus used for?

Traditional use: Agua de jamaica, a cold drink made from hibiscus calyces, is a fixture of street stalls and family tables. Scientific evidence: limited. Several controlled trials and meta-analyses show hibiscus tea lowers blood pressure slightly.

Is Hibiscus safe?

Safety label: generally safe. Generally safe as tea. May strengthen blood pressure medicines. Avoid large amounts in pregnancy.

Traditional use

Mexico

Agua de jamaica, a cold drink made from hibiscus calyces, is a fixture of street stalls and family tables. In folk use it is considered diuretic and good for blood pressure.

Egypt, Sudan and West Africa

Served as karkade at weddings and during Ramadan; in Senegal, bissap is the national drink.

In nature

Where it grows
Tropical and subtropical regions; not grown commercially in Türkiye.
Harvest season
Calyces are picked in autumn after flowering, once fleshy.
Local names
hibiskus, rozella, karkade

Mix-up risk

Ornamental rose of Sharon (Hibiscus syriacus) and Chinese hibiscus (H. rosa-sinensis) are different species; the tea is the fleshy red calyx of H. sabdariffa.

Preparation

The dried red calyces are steeped in hot water or soaked in cold water.

What science says

Several controlled trials and meta-analyses show hibiscus tea lowers blood pressure slightly. The studies are small and short.

Safety

Generally safe

Generally safe as tea. May strengthen blood pressure medicines. Avoid large amounts in pregnancy.

Similar plants

Sources

  1. ResearchHibiscus sabdariffa’nın tansiyon ve kalp-damar belirteçlerine etkisi: sistematik derleme ve meta-analiz
  2. Botanical recordKew Plants of the World Online: Hibiscus sabdariffa
  3. Titles of research sources are summarised in Turkish on the Turkish page; links open the original English publications.

Written by Edanaz Tınmazlar · Last reviewed: · Türkçe