Give them a fire hydrant? :oD I know roses like dog pee... anything that flowers might like dog pee....

Clover fixes Nitrogen into the soil......what causes yellowing/burning in grass, on shrubs, on anything dogs constantly pee on is the EXCESS Nitrogen content. It is like fertilizer burn. Animal pee is also high potassium which if pee is directed at ground and not foliage that may be the reason the roses dont mind it :)
If you water an area enuf where dogs are peeing you can actually move that nitrogen down into the soil where it can be broke down and used where it is needed. So whatever you plant you'll need to keep on the watering.

Vera

Thanks, I do water with a sprinkler system, and it helps a little. The dogs are not in the garden area out front with the roses :^) I am sure they are happy since the young one ALWAYS eats any flower that starts to look yummy :^O He ate all of the Calendula flowers last year :^( But it was funny seeing the yellow petals hanging out his mouth.

Where do I get clover seeds? anyone have them? I actually like the little flowers.

A bit late in responding.... You can find clover (you want 'Dutch' clover, it's low growing and will tolerate being mowed and some foot travel) at any farm and feed supply place. Make sure if the clover seed you get is NOT innoculated to get the 'innoculate' for it (aids in germination).
Also, if you live in a suburban type neighborhood, be prepared to be hated by your neighors and have every chemical lawn care business in a 3 state radius knocking on your door! Hard core lawn fanatics go apoplectic at the thought, let alone the sight of a lone clover plant NEAR their yard. Keep in mind that using any herbicides or 'weed & feed' products defeats the purpose of sowing clover.
On the plus side, clover, once established, stays 'green' without all the watering that a 'normal' lawn requires, will grow well even in bad soil (it also helps enrich the soil). It's not to late to sow some clover into your yard...
I sowed it in my lawn three years ago and absolutely LOVE it! While the rest of my neighborhood reeks of lawn chemicals and festooned with the little 'warning' flags about not walking on the poison they just dosed their lawn with for 24 hours (what happens after 24 hours, anyway, does it just go away?), my yard is awash with clover bloom, green and fragrant!
Oh, do NOT let your dogs repeatedly urinate on plants you like! While a little may be good or okay-too much will 'burn' the plant.

Innocuation is not meant for aiding germination...the innoculate is the Rhizobium bacteria which is what forms the nodules on the roots which fixes the nitrogen taken from the air...all legumes fix N.

Vera

OOPS! my 'bad'.... I just couldn't remember yesterday why innoculant is used (by some, and I don't want to get into that argument!) when sowing clover.

If you really want to make your yard 'interesting' you can try interplanting with Dragons Tears Clover and another called Dark Dancer Clover...