The Complete Handbook of Chard

Chapter 1: Understanding Chard

Chard, despite its familiar place in produce displays, is not a single homogeneous commodity. The plant you are buying, storing, or selling is a cultivated form of a sea beet (Beta vulgaris subsp. maritima), a member of the Amaranthaceae family, and it is much closer to a beetroot without a developed root, or to a mangold, than to a true cabbage or lettuce. Understanding this distinction at a botanical level matters in practice: chard's growth habit, its response to daylight and temperature, and its post-harvest behavior are governed by its evolutionary history as a leafy biennial, which is distinct from the physiology of the greens you might otherwise treat it similarly to in the prep room or the cooler. The goal of this chapter is to replace guesswork with a working mental model of the plant, so that every decision you make later - what to inspect, how to store, when to worry - follows from something you can observe and measure.

What you are actually buying

A single plant of chard is a cluster of leaves emerging from a shortened stem at the soil line. Each leaf is composed of two parts: a broad, flat or crinkled leaf blade, and a thick, fleshy petiole, or stem. The petiole is what most people mean when they say "the rib" or "the stalk," and it is a surprisingly heavy part of the plant. In a well-grown bunch, the petiole can account for 40 to 60 percent of