A cold-hardy banana tree with maroon striped leaves, a snowbell tree that reblooms, and several more ever-higher-performing hydrangeas are among the most interesting new trees and shrubs hitting the ...

Rather than wreaking havoc on a tiny island in the Indian Ocean -- as alien species can sometimes do -- a giant tortoise appears to be helping to restore the native ecosystem. Wildlife scientists ...

Heidi Hirsch receives funding from the Centre for Invasion Biology, Stellenbosch University, South Africa. She is a member of the Australian Trees Working Group, South Africa. For thousands of years, ...