Spinach is one of the few vegetables with beets and chard that prefers a neutral to alkaline soil (pH 7.0 or above).
Corn and new potatoes make a hearty
pairing in this soup.
Onions fit into three categories: short-day, intermediate-day and long-day varieties. Gardeners in plant hardiness Zone 7 and south will succeed best with short-day onion varieties.
All melons are warm-season crops that prefer rich, warm soil in full sun.
Chard is a close relative of beets. It is often grown as a summer substitute for spinach because of its tolerance for warm temperatures.