Griffinia is a fascinating genus of bulbous plants in the Amaryllidaceae family, native to the tropical forests of Brazil. Known for their elegant, lily like flowers in shades of blue, lavender, or Rubber Plant Benefits: Why Ficus Elastica is the Ultimate Indoor Powerhouse We plant our celeriac into soft, rich soil in early May. But they take eight weeks to reach transplantable size, so we seed them in early March in our heated germination house. Planting green' cover crop strategy may help farmers deal with wet springs Penn State University Where Did Plants Come From? This Ancient Algae Offers Clues WIRED Bryophytes: Closest Living Relatives of Early Land Plants Field Museum