Cucumbers need a sunny spot where the roots can be kept warm and moist, especially as the fruit is forming. The spot should be protected from harsh winds, and the plants will benefit from a shot of fertilizer as they begin to vine. Start seeds indoors to get a head start, and plant after the danger of frost. Small squashes are another space-saving vegetable. Their large flowers and coarse, gnarly vines are striking when hanging from a trellis or fence.
Several varieties are available.
Try black-green or golden zucchini, yellow crookneck or patty pan. These squash develop quickly and are best picked when they are very young, ranging from three to six inches wide and long. Start indoors to get a jump start on the season. Plant anytime after the danger of frost in a sunny spot with well-drained soil that can be kept moist. A mulch will benefit the moisture-loving, shallow roots.