The online store can be accessed at www.myarb.org. Order early for the best selection as quantities are limited. Delivery is ...

Lungwort prefers moist, well-drained soil and can tolerate a range of soil types, making it a versatile choice for shady spots around tree trunks. It's not invasive and spreads slowly, forming ...

A well-known way of measuring the age of a tree is by counting the rings in its trunk: one ring per year of growth. It's a process known as dendrochronology and only works for certain types of ...

Its trunk is rusty red ... may hold true for some kinds of trees in some places, but not for giant sequoias (or other tall species, including coast redwoods). Sillett and his team have disproved ...