Trees are such huge and enforcing things that we have the tendency to take their requirements for granted. We stress and fuss over yearly bed linen plants, and get all hot and bothered if a little dry area appears on the yard. Flowers and lawns though are ephemeral elements in the garden, while the tree is a long term matter. Undoubtedly, it is the one part of the garden that we really bequeath to future generations. It is of the utmost importance therefore not only to care and support it as one would a child, but likewise to recognize that numerous processes that potentially threaten its life, occur hidden and unheard, rather like cancer approaching on an individual.
Yards and flowers are pretty efficient in telling us how they feel. An easy tree stump grinding absence of wetness in the soil is practically right away interacted to us by the wilting of the plant. A tree on the other hand can appear strong and healthy, with none of the telltale signs of stress, such as drooping leaves. Yet looks can be really deceptive. In reality it can be specified in basic terms that when tension signs first appear, the internal damage that has currently happened is so serious, that the tree is well on its method to an early death.
The minimum water requirement for trees is thought to have to do with 300 mm a year. That is the most drought sturdy species on the planet, like Pistachio and Tamarisk, require access to some 300 liters of water for every single square meter of ground that they cover. So areas with less annual rains can not support trees of any form, besides in localized spots such as valley bottoms, where water may collect.
The majority of garden trees need a lot more than that. A lemon tree growing in a Mediterranean environment for example requires some 800 mm of water a year. If the annual rainfall averages say 400 mm, then the staying 400 needs to be provided by irrigation.
In dry environments for that reason it's essential to understand the yearly water requirements of the trees in your garden. Again, it ought to be pointed out that the tendency of many people is to water those plants that appear to be most in need. Really, in drought years the specific opposite must hold true. When water remains in brief supply, the flowers and lawn must be delegated dry, while the trees are provided what they need. Yard and flowers can be changed; a mature tree, 150 years old, never!
Rot and decay generally establish in the branches and trunks of trees following poor pruning operations. Just like water stress, the indications can take years to show themselves. The inaccurate pruning of a major limb might trigger that limb to collapse 15 years later or more, as the hidden, unheard progress of the rot eats its way into the heart of the wood. Trees that look completely healthy, complete with pruning wounds absolutely calloused over, can suddenly collapse. On examination, the trunk or branch is discovered to be hollow inside, the result of rot and decay working gradually throughout the years.