Read More: Starting A Kitchen Garden? These Are The Easiest Plants To Grow Watercress doesn't need a lot of nutrients. However, grown watercress may have iron, potassium, or phosphorus shortages.

According to B&W Quality Growers, watercress is the most nutrient-dense vegetable in the world, and scientists agree. "With more than 28 essential vitamins, minerals, and compounds, watercress is ...

Give traditional pesto a fresh, zesty upgrade with the addition of watercress. Simply blend one cup of watercress along with basil, garlic, pine nuts, and olive oil for a deliciously vibrant sauce.