If you like to dig in the soil for treasures, grow pignut, dig up the tubers, cook them and enjoy a delicious treat that has a sweet taste something like chestnuts but with a hot after-taste like a radish. The tuberous root that gives the plant its name give rise to a hollow stem up to 3′ tall bearing dark green, deeply divided leaves. Small white flowers are carried in branched umbels in early to mid summer. Although the white flowers are pretty and the tuber edible, the plant is considered a weed in Europe where it is native.
Type: Herbaceous perennial
Bloom Color: White
Bloom Time: Early to mid summer
Light: Full sun
Soil: Average, medium moist, well-drained
USDA Hardiness Zones:4-8
Photo Credit: Wikipedia