I bought several of these thinking they were types of grasses, they had no trunk just fronds then. and none of them have multiple heads they are all singles. The fronds are over a metre long and droop, more flax like, certainly not rigid, they have never flowered - I have also seen some exactly the same that were a deep wine in colour - they definitely were not labeled as cabbage trees or cordyline australis i have included a photo taken maybe a year and a half ago - they were about 1 metre tall, now they are well over 7 ft tall. Yes too close to the house - I want to know what they are so I can determine whether they can be cut off and replanted.