Comparisons
Hibiscus or Hawthorn?
Hibiscus (Hibiscus sabdariffa) and hawthorn (Crataegus) are two herbs linked to heart and circulation health. Their evidence is limited, and they do not replace blood pressure or heart care. The table is built from the sourced cards of both herbs.
| Aspect | HibiscusHibiscus sabdariffa | HawthornCrataegus spp. |
|---|---|---|
| Strongest evidence | B Limited clinical evidence | B Limited clinical evidence |
| Needs | Heart & Circulation | Heart & Circulation, Sleep, Stress & Mood |
| Form | Dried Herb & Tea | Dried Herb & Tea |
| How to use | Infuse 1.5–2 g (1 dessertspoon) of dried calyces in 200 ml of boiling water for 10 minutes; can also be drunk cold. | Pour 150 ml of boiling water over 1–2 g of chopped leaf and flower. |
| Pregnancy | Avoid | Avoid |
| Breastfeeding | Caution | Avoid |
| Recommended minimum age | Not stated | From age 18 |
| Drug interactions | Interactions reported | No recorded interactions |
| Duration limit | 6 weeks (in studies) | See a doctor if no better after 2 weeks |
Which one, when?
Hibiscus
Small studies suggest that drinking it regularly may slightly lower mildly high blood pressure; a Cochrane review found the data insufficient. With blood pressure medicines, pressure may drop too far.
Full card →Hawthorn
Traditionally used, once serious disease is ruled out, for temporary heart complaints such as anxiety-related palpitations and for mild stress; its standardised extract has been studied in heart failure only alongside prescribed drugs on a cardiologist's advice.
Full card →Good to know
- Seek medical help at once for chest pain, shortness of breath or swollen legs.
- If you take heart or blood pressure medicines, talk to your doctor before starting either.
- Neither is recommended during pregnancy.
Sources
- European Union herbal monograph on Crataegus spp., folium cum floreEMA HMPC · 2016 · MonographSource accessed:
- Hawthorn extract for treating chronic heart failureCochrane Database of Systematic Reviews · 2008 · Systematic reviewSource accessed:
- A systematic review and meta-analysis of the effects of Hibiscus sabdariffa on blood pressure and cardiometabolic markersNutrition Reviews · 2022 · Systematic reviewSource accessed:
- Roselle for hypertension in adultsCochrane Database of Systematic Reviews · 2021 · Systematic reviewSource accessed:
- Significant reduction in chloroquine bioavailability following coadministration with the Sudanese beverages Aradaib, Karkadi and LemonJournal of Antimicrobial Chemotherapy · 1994 · Randomized controlled trialSource accessed: