Costus (Spiral Ginger)
Costus afer
About Costus (Spiral Ginger)
Costus (Spiral Ginger) (Costus afer) is a herb used in the African Traditional Medicine tradition to help with Diabetes, Cough, Respiratory Issues, and Arthritis, among 1 other condition it addresses. The rhizome is the part traditionally used, used both internally and topically.
Botanical background
Costus afer, English ginger lily or common ginger lily, is a species of plant native to Tropical Africa.
Source: Wikipedia, via iNaturalist
Parts used
Conditions addressed
Tea / Infusion
- Steep 1–2 tsp of dried Costus (Spiral Ginger) in freshly boiled water for 5–10 minutes.
- Cover while steeping.
- Strain and drink.
Tincture
- Pack dried Costus (Spiral Ginger) 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
- Grind dried Costus (Spiral Ginger) into a fine powder.
- Fill size 00 capsules or stir into smoothies or honey.
Topical / Poultice
- Mash fresh Costus (Spiral Ginger) or mix the powder with a little water to form a paste.
- Apply to the affected area for 20–30 minutes.
Infused Oil
- Fill a jar with dried Costus (Spiral Ginger).
- Pour over a carrier oil until submerged.
- Leave for 4–6 weeks, then strain.
- Use topically or as a salve base.
Steam Inhalation
- Add 2–3 tbsp of Costus (Spiral Ginger) to a bowl of just-boiled water.
- Drape a towel over your head and inhale steam for 5–10 minutes.
Herbal Bath
- Brew 4–6 tbsp of Costus (Spiral Ginger) 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 Costus (Spiral Ginger) in our references — the guidance below is based on its general effect category, not research on Costus (Spiral Ginger) itself. Always confirm with a midwife, doctor, or pediatrician.
Pregnancy
Use CautionThis herb may affect blood sugar levels. Given the importance of stable glucose control in pregnancy, herbs in this category are generally used only under medical guidance, particularly alongside any gestational diabetes monitoring — this is a general, mechanism-based caution, not herb-specific research.
Breastfeeding
Use CautionGenerally used cautiously during breastfeeding, particularly if managing blood sugar medically.
Children
Use CautionChildren are more sensitive to blood-sugar swings given their smaller body size — these herbs are generally used cautiously and under guidance.
Contraindications
- Diabetes medications — may enhance hypoglycaemic effect; monitor blood glucose closely
Warnings
⛔ Diabetes Medications
May enhance the blood sugar–lowering effect of insulin or oral diabetes medications. Monitor blood glucose closely.
⚠️ 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 affect blood sugar
Watch for: Insulin and oral diabetes medications (metformin, sulfonylureas)
Additive blood-sugar-lowering effects can risk hypoglycemia — monitor glucose closely.
Where to find in nature
Native region
Southeast Asia (cultivated worldwide)
Climate
Tropical and subtropical
Habitat
Originally from Southeast Asian tropical forests. Now cultivated globally in tropical gardens and farms. Prefers partial shade and moist, rich soil.
🌿 To see Costus (Spiral Ginger) 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
- African herbal markets and medicine practitioners
- West African grocery stores (in diaspora communities)
- Health food stores (Whole Foods, Natural Grocers, Holland & Barrett, GNC)
- Naturopathic clinics and integrative medicine practices
- Specialist herbal apothecaries and herbalist practices
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 Costus (Spiral Ginger), 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.