Kumarahou is known to be a blood purifier and a tonic for the liver. 

Kumarahou may assist with the following

  • Coughing
  • Bronchitis
  • Asthma
  • Chest congestion
  • Arthritis

Kumarahou tea

Approximately 1 teaspoon of kumarahou added to a pot of boiling water.

Allow to boil (don't use a microwave!) for 1 minute and then simmer for 10 minutes, the liquid will turn a yellow/golden colouring - almost like honey. 

We will let you into a little secret - it doesn't taste great on its own!  however, we suggest mixing it with honey or raw brown sugar.


Drink 2 cups a day for a full week and then each alternative week. 

Kumarahou is sold in 30 gram packets of dehydrated leaves, enough for 3 month’s supply and approved for export from New Zealand to most countries.



Store in a cool dry place away from direct sunlight.

About Kumarahou

The beautiful native kumarahou (Pomaderris kumeraho) is smothered in creamy yellow flowers in September.

Making Wairakau, the rongoa, is an excellent way of extracting important antioxidant substances such as flavononids and polyphenols, glycosides, antimicrobial tannins, mineral salts and some vitamins (such as niacin and B12, which are not affected by the heating process), in their most absorbable forms. 5 are Native to NZ. FAMILY: Rhamnaceae Buckthorn family.


misspellings: kumeraho, kumerahou, kumarahoe, kumaraho 


SKU: Kumara 1kg

Customer Reviews

Based on 12 reviews
Kris Bowen
Great product

Arrived quickly, well packaged. Very happy and will buy again. Thanks Team Rhayne!

Simon Leeming (Contoocook, US)
RHAYNE Products

I am currently in the States. I ordered a number of items from Rhayne, including Red Matipo, Kumarahou, Pikopiko, Kanuka, Porcini ground wild mushroom and Horipito. The maling was quick, the mail packaging secure, the vaious dried herbs neatly labeled and packaged in generous portions. and the overall experience excellent. I was very happy with the service. Oh and all the products ka pai. I highly recommend Rhayne Products.
Nga mihi

Simon Leeming

Lizzie McPike (Christchurch, NZ)
Great quality product!!

Great product and good service!!!

Dairne (Auckland, NZ)

Fantastic service
Kumarahoe arrived reasonably quickly and my children are pleased there chest infections have improved by 90% in two days of consumption.
Highly recommend Rhayne and will continue to purchase rongoa maori medicine here 😊👍

toni wairama (Auckland, NZ)
Pomarderiss kumeraho aka Kumarahou

excellent product , fast efficient service, great price, keeps well, good shelf life, recipe wairakau ,Prior to harvesting your plant material and again before making your rongoā, offer a quiet karakia to acknowledge Tāne’s gift and the purpose for which it was harvested.Cover your kūmarahou leaves with cold water, use all parts of the shrub, bark and fibre leaves seeds and twigs (about 1.5 litres) in a stainless steel pot. Bring this to the boil and simmer gently for 15-20 minutes. Remove the pot from the heat and strain plant material from the water using a clean cloth or muslin. This water is your wairakau. Once the liquid has cooled you can store it in the fridge until needed. Return the spent plant material/leaves to Papatūānuku. Never discard your used leaves in the rubbish.
Dosage: Mix half a cup of cold decoction with half a cup of hot water. Drink 2-3 cups each day (the taste gets better as you get used to the initial kawa bite of the first mouthful).you can use honey and or sugar, gentle on kids and elderly. Aotearoa Maori Rongoa Whanui