For the Irish, pring cabbage holds a special place because it offers the first spring greens after a winter of root vegetables. And it is still hard to beat the earthy fresh flavor of cabbage cut from the garden in late March or April.
Generally time planting so that heads form either before or after hot summer weather, using floating row covers or cold frames and quick-growing varieties for spring crops. Likes cool, moist weather but heavy mulching can help (shade cloth or taller crops can help in midsummer) . Does well in almost any kind of soil but dress well with manure before planting. For conventional row planting plant 18" apart. Good companions: radish, lettuce, arugula or chervil. Harvest these companions before the cabbages become very large.