On a quick trip to Cambridge last week, I really liked this border of Echium pininana (or giant viper’s bugloss) along the lawn behind King’s College, here. (The building is actually part of Clare College.)
The biennials, which are native to the Canary Islands, can grow as tall as 13′ (or 4 m.). They want well-drained soil, full sun, and shelter from wind.
I also liked this wide walkway border of Queen’s Anne lace and long grass at the entrance to Trinity College.
The tree on the right is a grafted descendant of the apple tree that inspired Isaac Newton.