Question

Name the plant where seeds remain viable for 2000 years.

Answer 1

The oldest mature seed that has grown into a viable plant was a (Judean date palm) plant about 2,000 years

hope this will help you out

Answer 2

The oldest mature seed that has grown into a viable plant was a Judean date palm seed about 2,000 years old, recovered from excavations at Herod the Great's palace on Masada in Israel. It was germinated in 2005. (For more details refer to Judean date palm: Germination of 2000-year-old seed).