During the season of autumn, also called fall.
More detail:
As the temperatures get cooler, and the days get shorter, the tree sap goes down. The changing color of the leaves is due to reduced light, cooler temperatures, and the sap falling. After the color of the leaves change, they then begin to fall off. This is nature's way of helping the tree survive the cold temps of winter. The nutrients and water are then utilized in feeding the tree and keeping it healthy since there are no leaves to leach the nutrients from the tree.
That would depend largely upon what plant's leaves you are referring to, as well as in what region it is growing, what the weather is like, and what the season is. Some plants are evergreen and their leaves never change color, while other plants may change leaf colour simply due to the age of the leaf and not the season. The Autumn season, when many leaves typically change colour, takes place around September and October in the Northern Hemisphere of the world, and around March and April in the Southern Hemisphere.
There is, however, no specific month that a plant's leaves change colour. No leaf changes colour simply because it happens to be September, for instance.
Deciduous trees generally shed their leaves in Autumn and grow new ones in Spring, but a few may hold leaves until spring.
Evergreens shed leaves throughout the year, some in the Spring.
November.
It depends on your latitude and altitude but generally soon after the first freeze in fall, in October or November in North America.
Many trees (not the evergreens) lose their leaves in the fall. Some species of oak, and maybe others, hold onto their dead leaves through the winter and lose them in the spring.
The season that leaves fall from trees is known as autumn or fall.
Usually in spring or between spring and summer. It needs some water or rain from the spring.
that's easy Autumn
Autumn
deciduous trees shed their leaves in autumn. evergreen trees never shed their leaves.
They are called deciduous trees.
Deciduous trees often don't shed their leaves in autumn if they are grown in warm or temperate climates. Evergreen trees retain thier leaves throughout the year.
Sycamore trees are deciduous trees. They shed their leaves each year in the fall and grow them back the next spring.
Pretty much all of the time Florida does have leaves on there trees ,except for when just a few certain trees or so lose some leaves.
Autumn.
Autumn (fall) is the season when deciduous tree shed their leaves in the north.
A tree which sheds it's leaves once a year is called deciduous.
Trees that shed their leaves are called deciduous.
All deciduous trees shed annually, but some shed later in the year than others, such as the Blood-oak, which sheds it leaves in spring, instead of fall. Trees that do not shed their leaves annually are not deciduous.
deciduous trees shed their leaves in autumn. evergreen trees never shed their leaves.
Deciduous trees are trees that shed their leaves seasonally. During a certain part of the year every year. They loose all of their leaves during the cold or dry season and, depending on the climate, remain bare till spring time.
They are called deciduous trees.
because at this time their leaves are not required and the wood is used mainly.
Deciduous trees often don't shed their leaves in autumn if they are grown in warm or temperate climates. Evergreen trees retain thier leaves throughout the year.
Evergreen trees looks all round the year because sheddind of leaves are not at once. It keeps on renewing leaves.
once a year