Yarrow and other in Wine Barrel #3

The Yarrow in Wine Barrel #3 is starting to bloom...

Wine Barrel #3 now contains:
Yarrow - which is doing well - maybe a little too well in fact, it's threatening to engulf the whole barrel. I keep pulling runners out of the left side to keep it clear, and now have a ton of small potted yarrow becasue of it
Euphorbia - Same kind that's in Wine Barrel #1, this first year I planted these I made an attempt to have #1 and #3 mirror each other in plantings, but most of what was in #3 died that first year becasue of too much sun exposure (and not enough watering on my part). So this euphorbia is stunted compared to the other, but is now looking more established than it has the past two seasons.
Scarlet Monkey Flower - I thought this had died, but it's now coming back and is also thretening an invasion. It should have some gorgeous blooms on it in a couple months...
Echanicea - I thought this had died for good too, but it's on it's way back, still very small at the moment, but looking good, and nothing has eaten it yet...
California Fuschia - Bought this last year and stuck it in this barell when I thought everything else had died.