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[URL=http://newyorkplantings.com/] Drainage[/URL] is another key factor in plant health since putrefied organics create unfavorable environments and stunt root growth as well.
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Encouraging root growth is key to keeping [URL=http://newyorkplantings.com/] plantings[/URL] alive and giving them the ability to snap back after a harsh winter or Summer.
A planter filled with healthy roots can even survive without irrigation and only occasional hand watering. Root growth in NYC rooftop environments is the single most difficult thing to attain when caring for plants. 90% of the [URL=http://newyorkplantings.com/] living plants[/URL] in the city are still drawing from the original root ball or pot ring they were planted with years after being planted.
Nearly any tree or shrub can be rocked side to side and a crack or ring in the soil will develop exactly the size/shape of the original pot or ball. Just because they are alive doesn't make them healthy and any interruption in irrigation or extreme weather and most of the garden is dead in only a week.
A garden with a strong root system will thrive even with intermittent interruptions in [URL=http://newyorkplantings.com/] irrigation [/URL] and will withstand severe cold or heat.
For the first 2 seasons it is understandable that we only have a small root structure to work with: it must be protected and nurtured. Qualified Irrigation service provider in NYC : “New York Plantings and Irrigation”
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333 E 14 st box 1229
Manhattan, NY 10009
646-434-8049 Site url: http://www.newyorkplantings.com/Irrigation.html
Mulch and organic decomposition create natural heat as a byproduct of decomposition so not only heavy mulch but decomposing mulch along with other organics can slightly increase if not at least slow down rapid temperature fluctuations.