Though all plants need water, some are relatively drought-tolerant; for instance, rosemary, chives, sage, thyme and bay laurel are all perennials, and if the winter isn't too hard will likely survive with only occasional water, if they get a good start. Tarragon is a bit more frost-tender, but ours made it through the last rather mild winter. Mint will likewise thrive, but may have to be controlled or it can take over your garden. I use something like this automatic timer
, with some drip tubing downstream, for many plants--but it won't take freezing, so must be brought in during the winter.