Looks like an interesting plant, some sites say it is fairly fragrant but I don't have any firsthand knowledge of it. Many other plants you could grow like polianthes tuberosa, murrayas etc. Chilterns have the seed for murraya exotica and I've found it very easy to grow, though I'm still not sure whether it is actually an exotica or a paniculata. Polianthes tuberosa can be picked up as bulbs at most garden centres.

Here is a link that might be useful: Abronia fragrans

Sand verbena is extremely fragrant--at least when growing wild in the desert. The scent wafts in the evening and is very sweet. I have always wanted to grow it, but I have never seen the seeds or plants offered anywhere. I wonder if growing it in cultivation might lessen its scent?

Thanks for the advice - I think I'll give it a try.
I've got some tuberoses, and tried Murraya from seed last year- only one emerged and that has now quietly disappeared. But it sounds like it's worth persisting.
I don't see why the scent should be less in cultivation - but my UK central garden is not exactly desert-like.

Well the interesting thing with the murrayas is that I managed to pick up a reasonable sized plant from sainsburys for £3 in amongst with the rest of their plants, only £1 more than seeds for murrayas. Amazing that a supermarket has it but no specialist nurseries do. The scent could be less in cultivation through seed in some cases, for example reseda odorata, it may also need that strong dry heat during the daytime to be as fragrant later on.

What Sainsbury's? When? Where? I'll travel the length and breadth of the country!

RisingPower1's comment may explain why I never find the perfume of reseda to be any great shakes - though I'm trying again with the leftover seed.

I would have picked up two, they had them just a short while ago, got lucky whilst I was doing the shopping at tollgate. They even had some radermachera sinicas, not exactly the kind of plants you'd expect to find in sainsburys normally. They don't have anymore atm though, but I'd keep a look out in their foliage section. If I see one I could always mail it.