An excellent example of this concept is the Magnolia tree planted in the Whitehouse by President Andrew Jackson. After his wife passed on he had a memorial tree planting ceremony, in which he sat a Southern Magnolia Tree in the Whitehouse. The tree still grows there, and indeed a cutting of it was taken recently and planted in the home of Jackson as a memorial tree to him. So a tree that he planted in 1807 was returned via a cutting to his home and planted there in a memorial tree planting ceremony.
Now that is what I call continuity.