blueberry lower leaves turnin a shade of yellow

hey, my dutch passion bb is in its 3rd week of flowering, nd some of the lower leaves are starting to turn yellow, while the upper leaves are still a healthy green, ne ideas?

It depends exactly which leaves are yellowing and how they are yellowing. Try to post a pic of the whole plant and one of the worst leaf.

I am having this problem also, but with 2 week old seedlings. I happen to think it's a nitrogen overdose, but I don't know!

Weed- please take a picture of the problematic plants, start a new thread with the problem in the title and then post a link to your thread here.

weed. thats wat i was thinken too at first, i will be posting some pics lata tonite, also i should mention that my bb is tied over, im trying to keep it short.