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Few garden plants will survive waterlogging or flooding. Prolonged periods of sitting in ground saturated with water causes yellow leaves, root rot and death. However, conditions can be improved using various techniques to promote drainage and prevent damage.
Soils become waterlogged when water builds up, unable to drain away. This leaves no air spaces in the saturated soil, and plant roots literally drown.
Short-lived flash floods after a downpour seldom harm most plants. It is prolonged, saturated soil that cause the most damage.
Symptoms of waterlogging are not easy to tell from other disorders but look for the following;
Some of the symptoms are easily confused with water stress (too little water). But in fact, a waterlogged plant actually is water stressed. This is because the roots are drowning and can not absorb any water or nutrients to move around the plant.
Excess water causes problems for plants in a number of ways;
Bog gardensChalky soilsChalky soils: plants forClay soilsClay soils: plants forFront Gardens bookletFront gardens: permeable pavingGardening on wet soilsPhytophthora root rotWaterlogged lawns Wet and dry soils: plants forWet soils: plants for
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Jon Hopworth on 02/09/2015
It's not totally necessary to but can be useful, especially to help keep in moisture in hot weather.
Jon Hopworth on 25/08/2015
This is a great post. When we flooded almost all of my plants were damaged. I had a lot of problems myself with my garden an allotment.
I have written a post specifically about allotments here if any information is missing - https://keepingitcovered.wordpress.com/2014/03/11/recovering-your-allotments-from-floods-what-to-do/
Ann Grieves on 09/09/2014
is it a good idea to line raised beds?
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