7 ways to use wood ash in the garden

Wood ash is seen as waste. But like a lot of waste, it is also a resource. With plants, it can be useful in many ways. Discover 7 ways to use it instead of throwing it away.

  7 ways to'utiliser la cendre de bois au jardin

Do not throw away wood ash and reuse it in the garden to weed, as fertilizer, on roses and hydrangeas... Discover all the uses of wood ash in the garden!

Use wood ash to weed

Wood ash is an effective natural weed killer. In effect, rich in calcium and potassium, it impacts the pH of the soil. Sprinkle a little ash at the foot of the plants you want to see disappear, the moss of your lawn for example, and wait. The ash will greatly slow down its development and will permanently limit its appearance.

Use wood ash on roses

Roses like slightly acidic soil with a pH between 6.0 and 6.9. The purpose of wood ash is to raise the pH. Also, if your roses are planted in soil with a low pH compared to their requirements, you can add a little wood ash. This will have the effect of stimulate the flowering of your plants .

Incorporate the ashes into the soil with a claw at the rate of a small handful per rosebush , or at a rate of 100 g per square meter if necessary.



Use the ashes in the compost

It is possible to put the ashes in the compost , but in limited quantities. Indeed, its high limestone content can hinder bacterial activity and therefore the proper decomposition of other elements. Limit the amount to a handful once in a while.

Using ashes in the vegetable garden

At vegetable garden , wood ash can be an interesting ally. Spread in the spring between the vegetables, it stimulates their development. Used at the right dosage, it is very beneficial around fruit vegetables like tomatoes for example, around vegetables- flowers such as cauliflower or broccoli as well as around root vegetables like potatoes or carrots.

Use ash in the orchard

In the orchard, ashes can be of great help. Spread a handful of wood ashes at the foot of your fruit trees in the spring will stimulate their growth. You can also, for you protect against possible pest attacks , make a whitewash with ashes and water. To do this, dissolve the ashes in water until you obtain the consistency of pancake batter. Then apply the mixture to the entire height of the trunks, exactly as if you were doing it for a whitewash.

In addition to keeping pests away, the whitewash, to a certain extent, will play the role of thermal insulation and protect your fruit trees from frost.

Using Ash with Hydrangeas

When the hydrangeas are planted in calcareous soils, their flowers are pink or fuchsia. Conversely, when the pH is lower, the flowers are blue. Knowing that ash increases the pH of soils, add favored pink and fuchsia colors .

Use ash as fertilizer

Ash, by its composition, is a good amendment . Indeed, it is rich in calcium and thus contributes to the fertility of the soil. Also rich in potash, it stimulates root development and the extent of flowering. Silica, another element present in wood ash, helps plants assimilate trace elements . Magnesium, which ash also contains, is the main constituent of chlorophyll. Finally, phosphorus, present in less quantity in the ash but all the same, has an essential role in the photosynthesis .

Source journaldesfemmes.fr