All tree leaves have an outer layer called the epidermis, which can also be used in the identification process. This leaf "skin" always has a waxy cover called the cuticle and varies in thickness.

Texas lilac, also known as chaste tree (Vitex), is a beautiful specimen with purple flowers that bloom in midsummer, imparting a delightful scent that wafts through gardens in zones 6-9.

Often described as “low maintenance” or “hardy,” these plants are simply ones that are near-impossible to kill. They are ...

morgan23 / Getty Images A fully grown tree may lose several hundred gallons of water through its leaves on a hot, dry day. The same tree will lose nearly no water on wet, cold, winter days, so ...

One of the most frequent causes when leaves start yellowing is improper watering. Overwatering suffocates roots, causing limp, yellow foliage, often with a mushy texture. Allow the soil’s upper inch ...

The Cape chestnut is a small to medium-sized growing tree native to the Cape region of South Africa. It is a member of the ...

Magnolia, especially the southern grandiflora species (7-9), is another highly aromatic shrub or tree that puts forth large, sweetly fragranced flowers you’re not likely to forget. The more cold-hardy ...