![]() Weed killer is very effective, however it is harmful to the environment.Be careful not to allow the woodchip to touch the stem as it can cause rot. After clearing the ground around the tree, firmly fit the mat by tucking the edges into the soil and put a thick layer of bark mulch on top of this. Mulch mats are an effective way to stop grass and weeds, although they will require a careful eye to make sure they continue to work.It is vital that for at least 3 years after planting your tree or hedge has a circle or strip one metre wide completely free of grass. When trees are first establishing, the grass roots would be at the same level as the tree roots and are far more efficient at taking up water and thus choke the tree. One of the most common causes of lack of water is competition from grass. In hot dry spells give the equivalent of 2 bucketfuls every three days. It is essential throughout the spring and summer, to give a heavy enough watering to enable the water to penetrate right down to the deepest root level of the tree. The main reason that plants die within 12 months of having been planted is lack of water. Despite being known as a fir, it is not a member of the fir genus (Abies) and its similarity to a number of other conifers has seen it reclassified numerous times.įor the continued healthy growth of your trees, shrubs or hedging it is vital that you follow the advice below. However, it wasn't until 1827 that seeds of the tree were sent to Britain by fellow botanist David Douglas and so the tree's common name was coined after him. This enormous conifer was discovered by the Scottish naturalist Archibald Menzies in 1793 and it is after him that the tree takes its botanical name, Pseudotsuga menziesii. In favourable positions with abundant rainfall and moderately good soil growth is extremely rapid, hence the largest specimens in the UK already up to 60m (200ft) are in Argyll and only planted in 1849. A Native American myth explains this unusual feature as the tail and hind legs of mice which hid in the tree to escape forest fires. A slender egg-shape with a pointed tip, the cone has soft scales each of which ends with three clear prongs. In one season, the female seed cones change from yellow to pink to light brown and hang straight down from the branches. ![]() One of the tree's most distinctive features is its cones. As might be expected this is an important forestry tree and is extensively grown as such in the UK. ![]() It can reach 100metres (300ft) in its native west coast of America with a trunk 4 metres (12ft) in diameter. Plantation trees are normally sheared and will produce a crop within 7 to over 10 years depending upon the site and growing area.The Douglas fir is the world’s second tallest tree after the Coast Redwood. It is shipped to the majority of the states and is also exported to the Hawaiian Islands, Guam and some Asian markets. Nationally, it remains one of the most popular Christmas trees species. It is preferred because of its ability to withstand the more harsh growing conditions than the Pacific Northwest seed sources. glauca) has been extensively planted throughout several midwestern state Christmas tree plantations. Today, few trees come from forest lands.Īn interior strain from the Rocky Mountains (P. Since the 1950’s, the transformation from growing trees in the wild to culturing them on plantations has been dramatic. During the following 40 years, nearly all trees were harvested from forest lands. The Douglas-fir has been the major Christmas tree species used in the Pacific Northwest since the 1920’s. They have a sweet fragrance when crushed. The needles are dark green or blue green, 1 to 1 1/2 inches long, soft to the touch and radiate out in all directions from the branch. The branches are spreading to drooping, the buds sharply pointed and the bark is very thick, fluted, ridged, rough and dark brown. This wide ranging species grows from 70 to 250 feet tall.
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