Henna question....any help please?

[Jeleebaby]

Hi aalley hair is just past bsl and has a good 6-8 inches virgin hair at the top and the bottom is dyed blonde (pictured). http://i36.photobucket.com/albums/e19/jeleebaby/null_zps600c18fd.jpg (http://s36.photobucket.com/user/jeleebaby/media/null_zps600c18fd.jpg.html)
My question is, will the henna show as different colours on the hair or does it cover evenly and disguise the fact that the hair is two toned?

[Vivalagina]

I have blonde highlights. The henna is lighter/brighter on the highlighted areas than the rest of my light brown.

[marykatz]

Your blond ends will be much more red than the top. It is also very permanent.

[Jeleebaby]

Thanks, that was what I thought but having never used it before wasn't 100% sure. Think I'll wait until I'm at goal length and get some of the blonde cut out before I take the plunge :)