A native of Holland. Herb Barbara (bittercress or rocket cress) has beautiful bright yellow flowers and grows best in moist, moderately nutrient-rich soil. The leaves are edible and contain vitamin C. It is an excellent gestation plant for bees and provides nectar and pollen from early spring. The early western honeybees and Andrena bees (commonly called the mining bee) love this plant. Herb Barbara is also a host plant for butterflies, especially the green-veined white, small white and cabbage white.