I start this one indoors in my greenhouse, treat it like head lettuce and set the plants out in mid May. I do this because the cool part of spring weather in mid Maine is so short that it will bolt if direct seeded. This produces large plants to eat fresh in salads, steam, and freeze. I plant another crop later in July for fall in the same fashion because the soil is so hot in mid summer that the seed has very poor germination in hot soil. I keep the seedlings in a cool part of the greenhouse and set them out in mid to late August after the heat of summer. The fall plants grow into the cold and get impressively huge with many extra side shoots that start to come out of the leaf nodes. I call them "heads of spinach." One or two plants is all I need to pick to cook for dinner. They will survive several frosts in the fall.