I've had a trial test of using a hose pipe, and with one of these:
Hozelock Car Wheel Brush: Amazon £11 plus free UK deliveryand the result is impressive, a clean bike...
not spotless but just a couple of minutes of hosing it down to get the worse off after getting home from a wet and yucky ride.
The only problem was holding the bike with one hand and only having the other hand free to hose and scrub the wheels clean,
i could do with something simply to keep the bike up and steady while i work on it, perhaps a simple concrete slab with a wheel slot sort of thing (?)
Don't want to faff about rigging up a proper bike stand, too much time and trouble for a quick wash n' brush-up.
My mudguards were not really muddy so no issue there, but if they were the wheels would really need to come off with the brush, however it may be possible to blast mud out from the mudguards with wheels fitting by using a Hozelock nozzle, i have one which jets the water out fairly quick but not with pressure harmful to wheel bearings, so perhaps muddy wheels that's the way to do it. Would probably need a designated area to do it so the mess of flying mud wouldn't be a problem
The bristles of the brush are IMO just a bit stiff, brilliant for scrubbing the tyres clean, but rest of bike need light strokes on only the dirtiest areas - but this seem to work okay in practise
Hozelock nozzle