I could be way off here (and i probably am), but it could be some kind of Acacia (Wattle). When the flowers open you could get a better idea. A look at a young tree might also confirm or eliminate the Acacia idea as many young Acacias have sort of feathery leaves that are completely different to the adult tree. Some of what we call Wattles here retain the feathery leaves into adulthood. If it is an Acacia then the bees will probably be quite pleased - many Tasmanian species are listed in the "Field Guide to Native Flora Used by Honeybees in Tasmania". No doubt someone with local knowledge will set me straight.