Appearance

• Their first year, foxglove plants produce only a rosette of simple leaves with an "unremarkable appearance," according to the University of Arkansas Cooperative Extension. Growers will have to wait until the second year for flowers.
  
  

Conditions

• The plants prefer an acidic soil and partial shade, notes the Washington State University Extension. Foxglove will grow in full sun. The plant also prefers cool climates and does not perform as well in the South.
  
  

Dangers

• All parts of the foxglove plant are poisonous to mammals, according to the Purdue University Extension. Additionally, the extension notes that "Grecian foxglove (Digitalis lanata) is very invasive and should not be planted."