Independent testing of jarrah and marri honey in New Zealand in 2016 found that it had stronger antimicrobial properties than the much prized manuka honey.

Jarrah and marri honey samples were submitted for a phenol equivalence assay, which compared resistance against Staphylococcus aureus, otherwise known as golden staph.

The results confirm work being done by WA's government laboratory, the ChemCentre which has also found the forest honeys are anti-inflammatory, high in antioxidants and are good for human gut health.

The ChemCentre's principal food scientist Ken Dods, said some of the WA samples had 30 per cent higher activity than manuka.

"Jarrah and Marri honey, because of the nature of the activity that we have — which is a peroxide based activity — actually has quite a broad spectrum antimicrobial activity," Mr Dods said.

BeeHappy Apiaries was established in 1993 with Colin Fleay a 3rd generation Apiarist & his partner Ruth Hamlyn, together they run their apiary which homes 400 hives.

BeeHappy Apiaries is Certified Organic with NAASA (National Standard for Organic & Bio Dynamic Produce) Reg – 6145, they also produce a Preimuim Honey Range. 
The BeeHappy Bees are moved around the state of WA following the floral seasons from North of Lancelin where the spring wildflower honey is harvested, through areas of the Avon Valley for the Eucalyptus Marri, Wandoo & Powderbark, to Jarradale for the unique & famous Western Australian Jarrah Honey, & as far south as Nannup & East to Coolgardie.

Located in Toodyay Town in the picturesque Avon Valley of Western Australia, Bee Happy Apiaries are members of a Fabulous Retail Outlet called “Uniquely Toodyay” situated in the main street in the Old Historic Post Office, you will find a great range of their honeys, Pollen, Beeswax & Candles. Uniquely Toodyay supports many local producers & Artisans

reference https://www.abc.net.au/news/2018-02-03/wa-jarrah-marri-honey-gives-manuka-a-run-for-its-money/9211874?nw=0