[dice]

My version of a soaker hose: take an old hose that has been
semi-retired for decrepitude but has somehow not made it to
the landfill yet (you can check Craig's List for these, but that
requires some patience), trail it around the plants, and poke
a hole in it near the base of each plant with an icepick or some
other little pointy tool. Cap the male end with a 50 cent hose
end cap from a hardware store. Good to go.

Edit:

Sometimes these will roll a bit when water pressure is applied,
and the holes will act like sprinklers instead of drip emitters.
I just drop a couple of handfuls of mulch on it and weigh it
down with a brick right there when that happens.