Blitum bonus-henricus, also called Good-King-Henry, Poor-man's Asparagus, Perennial Goosefoot, Lincolnshire Spinach or Markery is a species of goosefoot which is native to much of central and southern Europe.
Good-King-Henry has been grown as a vegetable in cottage gardens for hundreds of years, although this dual-purpose vegetable is now rarely grown and the species is more often considered a weed.
It is an annual or perennial plant growing up to 400–800 mm tall. The leaves are 50–100 mm long and broad, triangular to diamond-shaped, with a pair of broad pointed lobes near the base, with a slightly waxy, succulent texture. The flowers are produced in a tall, nearly leafless spike 100–300 mm long; each flower is very small (3–5 mm diameter), green, with five sepals. The seeds are reddish-green, 2–3 mm diameter.
Cropping can begin in spring. Some of the new shoots can be cut as they appear (usually from mid spring to early summer) and cooked like asparagus. All cutting should then cease so that shoots are allowed to develop. The succulent triangular leaves may be harvested a few at a time until the end of August and cooked like spinach.