Eucomis, or pineapple lily. This is a large one and so far the stalk has stayed upright. It turns out I also have a miniature one the same colour, which is flowering for the first time.
This nusery website (West Australia) has more information about eucomis. The flowers have a tendancy to sprawl all over the place because the soft stems can’t hold their weight. Te Puna plant breeder Ian Duncalf is doing a lot of work with eucomis and reckons he’s getting it sorted.
PS: They’re called pineapple lilies because of the little tuft of leaves at the top of the flower that looks something like a pineapple.
Meanwhile, here is an article about clematis wilt (we fixed it by replanting deeper so some latent buds were buried and all has been well). You can read more about Mrs Cholmondeley, the plant, here.
Clematis Mrs Cholmondeley. This is the third time it’s tried to flower this season – the first buds were lost to wilt, the second were blown off! Third time a charm, though.