Gardening: use wood ash in the garden, good or bad idea?

By press agency APEI published leactuvoir my news

In France, 1.2 million households heat wood.An asset for the garden because the ashes has many benefits!With a pH10, it is first very rich in lime, therefore in calcium.

It also contains potassium, magnesium and phosphorus: a cocktail of vitamins for a healthy garden.Be careful however, it must come from logs or pellets and not palette, melamine, plywood or autoclave, loaded with heavy metals.

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A food supplement for plants

The calcium of ashes has an alkalizing action in the ground, which makes it an excellent anti-foam and a fungicide, as well as an antiparasitic.

Potash, magnesium and phosphorus feed plants and stimulate root development.This promotes the extent of flowering and generosity of fruiting, while making plants more resistant to diseases.Magnesium also plays a role in the production of chlorophyll.Silica decreases the stress of plants.

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Have a light hand

The ash is an amendment (and not a fertilizer) that you have to know how to use sparingly to draw the best profits.It can indeed modify the physical structure of the compost or the earth.

Two handles maximum per square meter and per year are enough (or not more than 1 kilo over 10 m2 per year).Spread it in the garden throughout the winter and until spring, intermittently.

The ash also fertilizes compost, always use it without excess so as not to make it too acidic.

Furthermore, it is not suitable for all land or all plants.Bruyère's lands do not support it and pay attention to the soils already limestone, the alkaline character of which it reinforces, unfavorable to the majority of ornamental plants.

Acidophilic plants such as Azaleas, Camélias, Rhododendron, Japanese maple, Hortensia, Magnolia, Muguet, and Bruyère do not need it.

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Where to use the ash?

In the vegetable patch, tomatoes particularly appreciate it, potatoes and beans too, to a lesser extent, such as flower beds and small fruit shrubs, and even engaged areas.

The ash can be applied as a brush on fruit trees, mixing with clay.It can also serve as a bird dust bath, eliminating parasites on their wings.Also use it at the chicken coop.

Finally, it even helps melt the snow!

Claire Lelong-Lehoang

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