I have many shrub and rambler roses that have gotten huge.
Just pruning them is a major ordeal.
I don't have the time or energy to keep the bases
(some of which are basically inaccessible without cutting
your arms and hands to bloody ribbons) weeded and mulched
so fertilizing then with Rosetone or compost is not something
I'm able to do with my monster roses and some and
some are displaying yellow leaves on the tips of some of their canes this Spring.
I know you can use Miracle Grow or Fish Emulsion as a topical spray (prefer to
to use natural products) but what natural foliage spray is complete?
Any ideas appreciated.

P.S. I feel like if I apply fertilizer to the base of the roses I'm just fertilizing the sod that grows around them.

I have no idea so I Googled and found this recipe, sounds good.
http://www.dianeseeds.com/gard...
If you can some how dump some manure around the base, maybe it will act as a mulch for the sod and also benefit the roses.
and a few other links, I just bookmarked them myself for future reference:
http://www.rose-works.com/orga...
http://www.ehow.com/way_580483...
http://www.cleanairgardening.c...

I don't know the answer either. But here's a SWAG:

I think I would just fertilize with any good, balanced organic fertilizer such as Mills Magic or Espoma. If you don't prune the rose severely each year, it's need for nitrogen will not be very great, so a little loss to the grass should not be a problem. I assume that when you mow, you mulch the grass in place. If so, that returns many of the nutrients into the ground, anyway. Maybe grow some low-growing clover in your sod, and the nitrogen problem is solved.