Can anyone identify this please

Feijoa,now called Acca sellowiana,I have purchased one myself this year and I hope it soon looks like your dads.Tell him after a really hot summer it has edible friuts

That is Acca Sellowiana, previously known as Feijoa, or the 'fruit salad plant'.
Certainly not a eucomis! If it was sold in error I think your dad got a bargain!
I am growing this shrub and this year had lots of flowers like the ones in your picture, but unfortunately none of them have set into fruit. The fruit are supposed to be really tasty. The plant is quite hardy.

thanks very much Bren, sadly there wont be many fruits on this particular plant as they had a freak hailstorm last week and its all but wrecked nearly everything in the garden!

no bargain Bertie he paid over £100 for it!

does it need any prunning at any time or should he just let it grow on? Whats it eventual size?

I bought my Feijoa for 25 euros, so his garden centre was on to a good thing! Doesn't need pruning as it has a shrubby habit. The one I grew from seed (which only ever produced one flower) grew to about five feet after ten years, so not what I'd call fast growing. The cultivar I bought two years ago is up to three feet though in that time. They don't make much more than a shrub from what I've read about them.

Wow, it's on sale in my local garden centre for £10! I'd guess it's a less mature plant though. The fruit is pretty tasty - they turned up in an organic fruit box once.

GOY certainly is an educational site! Never seen or heard of it before. Thanks, folks.

AKA Guava. A nice fruit. If you pull off the flower and eat i,t it taste like candy.

Thanks, I've heard of guava, though never eaten it. Are you really a rugby hooker?

The true guava is a psidium , but the feijoa tastes very like it, so they say. The French name for the feijoa is the 'goyavier de Bresil' or Brazilian guava. One day I will get to taste the real thing! We succeeded with real guavas in the conservatory from seed from supermarket fruit. But it ripens when the weather is cold and consequently tastes pretty awful! Makes a nice foliage tree though.