It is council land — but that does not mean much
The berm between your fence and the road belongs to Tauranga City Council. In practice the council only mows it once the grass hits 300mm, and they use ride-ons with no catchers, so the clippings stay where they fall.
The council’s own leaflet puts it plainly: most Tauranga residents want a better standard than that, which is why the vast majority mow the berm themselves or arrange for someone else to. There were 110 complaints about unmaintained berms over five years, so it is clearly a sore point.
Out at Ōmokoroa, Te Puna or Te Puke you are in the Western Bay of Plenty District instead, and there it is stated outright — the property owner is responsible for the verge outside their place.