Cucumbers are closely related to melons, and the thin-skinned slicing cucumber varieties are just as refreshing on a hot summer day. And pickling cucumbers—once pickled, of course!—are great all year long. Growing them on a trellis lets you cram a whole lot of productive plant in a small amount of space.
I've seen it recommended to start cucumbers indoors, but we've had better luck direct-sowing them once the soil warms. Plant 1 foot apart at the base of a trellis. We preserve the seedlings from pests overnight by covering them with 3 inch pots until they outgrow that protection. Keep the plants watered in dry periods and pick the cucumbers as soon as they reach their full size—quality quickly declines past that point.