Before spend money on expensive pipe drainage bear mind that too efficient a system will povcrish your soil as the plant nutrient will be leached out very easily. Try one several natural corrective methods first.
Dig a hole about 1 m (3 ft) square and at least I m (3 ft) deep; it should be sufficiently deep to penetrate the impervious subsoil into something more porous below. Fill the hole first with brick or other large, hard rubble to a depth of about 600 mm (2 ft), then with about 100 mm (4 in) of gravel or ash. Finally fill with excavated topsoil up to ground level.
The gravel layer is essential to prevent the coarse rubble becoming blocked with silt and soil leaching through from the soil replaced on top. During very wet weather surplus water will collect in this hole and slowly percolate from it into the lower strata. A soakaway should always be sited well away from the house, as it may weaken the surrounding soil.
A rubble drain is a short-term drainage run, which may be all that is required on a new site to relieve temporary lying water. Dig a trench 300 mm to 450 mm deep, depending on the depth of cultivated soil (since water collects on the comparatively solid pan of undisturbed ground that lies immediately beneath). Fill the hole at least half full with coarse rubble then with a layer of ash or gravel and finally topsoil.
While the application of artificial fertilizers helps to stimulate plant growth it does nothing to improve the physical qualities of the soil. In fact over-application of these materials can cause soil deterioration by destroying bacteria. Soil texture can be improved by the addition of sterilized peat (moist, decomposing plant matter) but this has no mineral or food content at all. The fertility of a soil is an extremely complex balance between its physiology, its humus content and its mineral content (shown by its pH value). Once a gardener understands how each factor in the balance works, he has control over his plot, over what will grow and where. A well drained soil is essential not for successful plant growth but also paths and walls are to he built. It is therefore important to consider the draink your whole plot, not simply with regal the growing areas.
Few plants like a lot of water ar their roots and in a soil which is consta wet the plant roots will remain near surface or will start to rot. Wet soils also cold, which retards plant gro When drainage is inadequate, not on air blocked from the plant roots but general lack of air in the soil means bacteria cannot live and the bacteria ai vital part of healthy soil.
Dig a hole about 1 m (3 ft) square and at least I m (3 ft) deep; it should be sufficiently deep to penetrate the impervious subsoil into something more porous below. Fill the hole first with brick or other large, hard rubble to a depth of about 600 mm (2 ft), then with about 100 mm (4 in) of gravel or ash. Finally fill with excavated topsoil up to ground level.
The gravel layer is essential to prevent the coarse rubble becoming blocked with silt and soil leaching through from the soil replaced on top. During very wet weather surplus water will collect in this hole and slowly percolate from it into the lower strata. A soakaway should always be sited well away from the house, as it may weaken the surrounding soil.
A rubble drain is a short-term drainage run, which may be all that is required on a new site to relieve temporary lying water. Dig a trench 300 mm to 450 mm deep, depending on the depth of cultivated soil (since water collects on the comparatively solid pan of undisturbed ground that lies immediately beneath). Fill the hole at least half full with coarse rubble then with a layer of ash or gravel and finally topsoil.
While the application of artificial fertilizers helps to stimulate plant growth it does nothing to improve the physical qualities of the soil. In fact over-application of these materials can cause soil deterioration by destroying bacteria. Soil texture can be improved by the addition of sterilized peat (moist, decomposing plant matter) but this has no mineral or food content at all. The fertility of a soil is an extremely complex balance between its physiology, its humus content and its mineral content (shown by its pH value). Once a gardener understands how each factor in the balance works, he has control over his plot, over what will grow and where. A well drained soil is essential not for successful plant growth but also paths and walls are to he built. It is therefore important to consider the draink your whole plot, not simply with regal the growing areas.
Few plants like a lot of water ar their roots and in a soil which is consta wet the plant roots will remain near surface or will start to rot. Wet soils also cold, which retards plant gro When drainage is inadequate, not on air blocked from the plant roots but general lack of air in the soil means bacteria cannot live and the bacteria ai vital part of healthy soil.
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Good garden drainage system is important in garden planning to have a thriving garden.

