We have a rose tree too though ours has smaller roses. It's hard to tell from your photo, but is yours on a long "trunk"? Ours is, but shoots keep coming up all around it from the roots. It's driving us crazy!\
Yes it's about 5 ft. tall...it has small roses at first then it blooms all the way out...none from the bottom...looks jus like a tree trunk but skinny...lol!
Yours is very pretty. I love yellow roses.