0
About the Author:
Posted on 1:05 PM by Wanto and filed under
By Audrey Christopher
Members of Lawson Cypress genus are natives of North America and Asia. Best known in Europe is the Lawson cypress, introduced there from America in 1854. It has a narrow, conical crown and reaches a height of up to 60 metres. It greatly resembles the 'arbor-vitae but differs from them in having pendulous terminal shoots, with reddish- brown, scaly bark, narrow white markings on the underside of twigs, and scale-like needles. The greenish female flowers are borne on the tips of the shoots. The cones, green at first, mature in September when they open to release the small, winged seeds.
It reaches heights of 25 to 30 metres and has a sparse, highly placed crown. The bark is smooth and coloured greenish grey, but old trees have fissured blackish bark at the lower part of the trunk. The buds on the twigs are lustrous-brown and sharply pointed. The aspen is a dioecious species (male and female flowers on separate trees). It flowers in March and the tiny seeds, imbedded in cottonwool-like hairs, are shed in late May. The leaf stalk is long and flattened, and even a slight breeze sets the leaf in motion. The aspen is a light-demanding tree and does not require rich soil.
The balsam poplars are indigenous to North America and Asia. The one most commonly cultivated in Europe is Populus balsamifera L., a native of North America, where it grows on alluvial bottomlands in the northern United States and in Cahada. The name is derived from the pleasant balsam smell of the opening buds and leaves. It grows to a height of 30 metres and has yellow-grey bark, thick and furrowed, and coloured blackish at the base of the trunk.
The twigs are yellow-brown to brown, the buds covered with a layer of balsam resin. The flowers and fruit are very much like those of the white poplar. The balsam poplar is a light-demanding tree that requires considerable moisture.
The juniper is a dioecious species, i.e. individual trees bear only male, or only female flowers. Inconspicuous, they are borne in the axils of the needles, maturing after two years into blue-black berry-like cones.
The juniper is highly valued in forestry as a pioneer and to prevent soil erosion. In garden landscaping its dwarf forms are mainly used in rock gardens. The high quality wood is of little importance since the tree is of such small dimensions. The berries are used for flavouring gin and seasoning food.
It reaches heights of 25 to 30 metres and has a sparse, highly placed crown. The bark is smooth and coloured greenish grey, but old trees have fissured blackish bark at the lower part of the trunk. The buds on the twigs are lustrous-brown and sharply pointed. The aspen is a dioecious species (male and female flowers on separate trees). It flowers in March and the tiny seeds, imbedded in cottonwool-like hairs, are shed in late May. The leaf stalk is long and flattened, and even a slight breeze sets the leaf in motion. The aspen is a light-demanding tree and does not require rich soil.
The balsam poplars are indigenous to North America and Asia. The one most commonly cultivated in Europe is Populus balsamifera L., a native of North America, where it grows on alluvial bottomlands in the northern United States and in Cahada. The name is derived from the pleasant balsam smell of the opening buds and leaves. It grows to a height of 30 metres and has yellow-grey bark, thick and furrowed, and coloured blackish at the base of the trunk.
The twigs are yellow-brown to brown, the buds covered with a layer of balsam resin. The flowers and fruit are very much like those of the white poplar. The balsam poplar is a light-demanding tree that requires considerable moisture.
The juniper is a dioecious species, i.e. individual trees bear only male, or only female flowers. Inconspicuous, they are borne in the axils of the needles, maturing after two years into blue-black berry-like cones.
The juniper is highly valued in forestry as a pioneer and to prevent soil erosion. In garden landscaping its dwarf forms are mainly used in rock gardens. The high quality wood is of little importance since the tree is of such small dimensions. The berries are used for flavouring gin and seasoning food.
About the Author:
Privacy, including protection from the dirt and noise of passing traffic, can be a garden planning problem where the house garden adjoins a busy street.
Post a Comment