Evergreens like boxwood (Buxus sempervirens) and yew (Taxus baccata) are commonly used to create hedges and borders in today's knot gardens. Caring for boxwood is relatively easy, and they are easily ...

State Key Laboratory of Chemical Oncogenomics, Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China Shenzhen Key Laboratory of Health Science and Technology, ...