once a year, annually, in fall/autumn
Pine trees do not lose their leaves in Autumn. They are tall trees that have string like leaves and have cones on them. The cone are called 'Pine cones'. The look relatively the same all round the year.
I think pine cones tend to grow every other year on pine trees, and i notice every other year they're will be 3 or 4 on one branch.
No, but their Pine Cones do. Pine Cones are brown. The Pines themselves are green all year round.
Evergreen trees keep their leaves on all year around. Some trees that are commonly found in evergreen forests are poderosa pine, incense cedar, sugar pine, and douglas fir. Pine trees have needles and pine cones. Squirrels, foxes, wolves, coyotes, owls, and eagles live in the forest.
The amount of cones on a tree is dependent on the previous year. If that tree was under stress (ex. drought) in the previous year then there may be more cones on the tree in the current year.
I think you're a little confused. Pine cones come from pine trees. Evergreens are any plant that doesn't lose its leaves ever year. Not all evergreens are needle leaf trees. Not all needle leaf plants are evergreen. Not all evergreens have cones. And not all plants with cones are pines. But... to answer your question... A cone on a plant (be it a pine, spruce, fir, yew, cedar, redcedar, redwood, larch, or hemlock) is a reproductive organ. Most conifers have separate male and female cones. The male cone has spores that contain sperm. The spores are dispersed by air and land on the female cone (usually of another plant.) After the female cone is fertilized, seeds form.
There are two major types of trees: Deciduous and evergreens. Evergreens are trees, which keep their leaves all year long. Pine, cedar, and other coniferous (producing cones) trees are evergreens with needles instead of leaves. They are the most common evergreens in Maryland. Deciduous trees lose their leaves during the fall and grow them back in the spring.
It is best not to fertilize pine trees, as all they really need is mainly sunshine and water. At most add only a tablespoon of balanced fertilizer to the dirt and then water to let nutrients reach the tree.
Evergreen trees like pine trees keep their leaves all year
Because they are a kind of Evergreen.
spruce or pine trees are always have green pine needles and brown bark all trough out the year. While birch and willow trees their bark turns a more whitesh brown.
Typically trees will have more seeds or pine cones when the tree is stressed. Stress can come from many sorces such as drought etc. This is natures way of re-seeding should the tree die.