best way to grow celery?

Is this from seed or from a stump? Regrowing the base of a shop bunch in a dish of water is fun but you'll get thin stalks at best. From seed it's slow - start indoors 10-12 weeks before last frost, barely cover the seed as it needs light to germinate. The real trick is water. Celery wants rich soil that never dries out; let it go dry and the stalks turn stringy and bitter. Lots of compost, mulch, and water every day in hot weather.