Mitsuba, or Japanese parsley (Cryptotaenia japonica) is one of the many Japanese herbs we're regularly plucking from the garden.
It's a perennial plant that will thrive for four to five years, and will self seed if it's happy. We grow it outside here, on the flanks of Mount Welly at 300m, with all the frost, snow and wind that brings. It often dies down in the depths of winter here, and re-appears in spring. It's looking happy in a well composted, but not well watered corner of the garden through this hot weather. It's worthy of a place in the veggie plot for picking in generous quantities, or in the ornamental garden to enjoy the delicate white flowers and pretty foliage. It will thrive in a sheltered position, with well composted soil, in sun or part shade.