Plant close together and keep cutting until it flowers. The more you cut the more pungent it will become. You can reseed throughout the whole year for a continuous supply.
Also known as Roquette or Rocket. Few people are indifferent to arugula: most of us love it, a few despise it. Musky green and its piquant blossoms will spice up your salad. Bolts readily in heat, frequent watering will reduce its pungency.