I use oak leaves for mulch in my flower beds all the time. I think it looks nice. Most of plantings are woodland natives that like that leaf duff anyway.

Ditto JoePye's comment. Your shredded leaves will get gobbled up relatively quickly, especially if you have earthworms. I can't speak to veggie gardening but the flowers ought to like it.

Veggie gardens love them too. ;)

Dave

Shredded Oak, or any other tree, leaves are fine for mulching any garden. There is a old and persistant myth, debunked by good research, that says Oak leaves will make soils acidic which they will not do.

You've already done the hard part -- shredding the leaves -- which transforms them into ready-to-use mulch or almost-ready-to-compost leaves. Some leaves don't need shredding but oak leaves do, so good for you. I could do with a big pile of them right now!

Here is a link that might be useful: my website

same here bcomplx, last year I needed all the greens I could get and had an over-abundance of browns and this year it's just the opposite. I need about 2 cu. yards of browns and I everything I come up with is just piecemeal tidbits.

If you need browns, I suggest shredded junk mail. Junk mail is my favorite brown, when I am out of leaves. Though I wouldn't suggest spreading junk mail as mulch, but it does make great compost.