I am going to discuss the Prasophyllum flavum - the Yellow Leek Orchid. As PlantNET says, it flowers from October to January.
|Small plant of Prasophyllum flavum|
|Prasophyllum flavum - Yellow Leek Orchid|
|Prasophyllum flavum - the Yellow Leek Orchid|
|A tall flowering stem of Prasophyllum flavum|
I cannot offer definitive answers, but I do know that there are closely related plants in the local area (other Prasophyllum species), which flower "like clockwork" in late October and the first two weeks of November. Why is this species suddenly flowering now? It is very tempting to say it is related to the rainfall.
The best I can do is make the suggestion, and offer to monitor these plants over coming years.