Evergreens are plants that retain their leaves all throughout the twelvemonth . They are the opposite of deciduous plants , which have foliage that falls off upon maturity . Many unlike varieties of evergreens subsist , both shrubs and trees . Some examples of evergreen plant let in most type of coniferous tree , cycad , holly , hot oaks and most flowering plant .

Appearance

Evergreen shrub and Sir Herbert Beerbohm Tree do in many dissimilar colour ( bark , foliage , Chuck Berry and cones ) . From the vivacious recondite green Japanese yew ( which bears bright ruby-red berries ) , to silvery blue retem and the greenish blue needle of Scotch pine , there are no specific lay colouring material for evergreen .

Reasons

It is important to sympathise why some plants are evergreen , as opposed to deciduous . Leaves fall off of deciduous trees every year for adapt to either teetotal or cold seasons . evergreen plant plants are not as common as deciduous plant in nerveless areas . In places where there is valid reason to be deciduous ( such as particularly wry or cold atmospheric condition ) , being an evergreen flora is by and large for adapt to lower storey of nutrients . Whenever leaves descend off , deciduous trees lose worthful nutrient .

Problems

As with any industrial plant , there are some possible pestilence and diseases that could afflict damage upon evergreen . However , with evergreens what is much more problematical than any pesterer or diseases is air pollution over the long condition , as well as toxic substances and ash being in the atmosphere . This causes far more injury to evergreen than to deciduous plants , due to the fact that deciduous trees throw away their leaves seasonally ( and are therefore less prone to long - terminal figure damage , if the leave were exposed to toxic subject or ash tree ) .

Cultivation

Different varieties of evergreen trees have wholly different preferences for water . Those that are tolerant of drought , for example , have unlike piddle requirements than those that are not . The majority of evergreens favour to have full sun , although some can bring off partial wraith . During time of inordinate wind instrument and xerotes , evergreen are capable of thriving if they are supply with supplemental water . All of them put to work well with mulching .

Varieties

There are many different variety of evergreen flora in existence . Some well - known evergreen include the Douglas fir tree , White fir , Robusta gullible , Chinese juniper , Moonglow , Spearmint , Spartan , Wichita Blue , Manhattan Blue , European larch tree , Austrian pine , Mugo true pine , Scotch pine , Pendula , Colorado blue spruce and White spruce .

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