Rhys Ifans is apparently treating girlfriend Sienna Miller to a basketful of birthday presents – and it seems there are even rumours he may give her an engagement ring.

The blonde actress turns 26 on Friday and Rhys is hoping to make it a day to remember.

A source told The Sun: “He’s collected 10 presents for Sienna of varying shapes, sizes and prices. They are all part of his plan for a romantic night in with a mountain of presents.

“Sienna is having a bit of an age crisis, feeling that she hasn’t done enough with her life. So Rhys, whose philosophy is to live and enjoy every day, has penned a poem about their brilliant future together, all her achievements in life so far and always seizing the moment.

“He is keeping tight-lipped on a proposal, but hinted to me that he has had a Welsh designer craft a special ring for her… which can only mean one thing.”

Rhys has also apparently written a poem for Sienna in his native tongue – which the actress is trying to learn.

The pal added: “Rhys was so touched and is trying to capture all these things in his love poem, especially as Sienna has decided to learn Welsh to show him the depth of her commitment.”