Trillium erectum aka Bethroot

Trillium erectum, also known as the red trillium, wake robin, purple trillium, bethroot, or stinking benjamin, is a perennial herbaceous plant in the family Melanthiaceae. It is native to the eastern United States and eastern Canada, ranging from northern Georgia to Quebec and New Brunswick. The plant grows to about 40 cm (16 in) in height with a spread of 30 cm (12 in) and can tolerate extreme cold in winter, surviving temperatures down to −35 °C (−31 °F). Its parts are in groups of three, with a 3-petalled flower above a whorl of pointed triple leaves. Trillium erectum is a spring ephemeral whose life-cycle is synchronized with that of the forests in which it lives. The plant takes its common name "wake robin" by analogy with the European robin, which has a red breast heralding spring. Red Trillium is also a super rare houseplant that is not challenging to grow and needs regular watering to thrive. It is best kept in abundant sunlight and should be less than 3 feet from a window. The plant likes soil that is well-draining, and it won't need added fertilizers if it is repotted each time it doubles in size. Red Trillium belongs to the Trillium genus and is native to North America.