The kiwifruit started out as a wild Chinese vine known by names like macaque peach, gathered by foragers and used in folk medicine. This episode follows it from Tang and Song dynasty records to New Zealand, where Hayward Wright developed the fuzzy green Hayward variety around 1924. It was sold as the Chinese gooseberry until the late 1950s, when a US importer warned that the name was a liability during the Cold War and that the word gooseberry was causing trouble with American customs, which associated gooseberries with anthrax in soil. In 1959 Jack Turner of Turners and Growers registered the name kiwifruit, after the nickname for New Zealanders rather than the bird.

We also explain why the fruit is so hard to farm. The vines have separate male and female plants, honeybees avoid the female flowers because they produce no nectar, growers flood orchards with hives or spray pollen by hand, and a 2020 genetic test can now tell a seedling’s sex early. The story moves on to gold and red varieties, the PSA bacterial outbreak that wiped out New Zealand’s Hort16A, the SunGold cuttings smuggled to China, and China’s return as the top producer. We finish with actinidin, the enzyme that tenderizes meat, liquefies gelatin, and backs an EU-approved health claim about bowel function.

• How the Chinese gooseberry was renamed kiwifruit for the US market
• Why separate male and female plants and nectarless flowers make pollination difficult
• The PSA outbreak and the switch from Hort16A to SunGold
• Smuggled SunGold cuttings and how DNA testing is used to prove plant variety rights
• Actinidin’s effects on meat, jello, allergies and digestion