can human ashes be used as fertilizer

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  • Can ash be used as fertilizer?

  • Not every type of ash can be used in the house or garden without hesitation. Plant ashes are basically suitable for use as fertilizer 鈥?meaning ashes from burnt wood, straw, or other plant material.

  • Are human ashes good for plants?

  • Unfortunately, the answer is no, not very well, although some plants may be more tolerant than others. Human ashes are also bad for the environment because unlike plant matter, ashes don鈥檛 decompose.

  • Are cremation ashes harmful to plants?

  • And finally, cremation ashes have a very high pH level, which can be toxic to many plants because it prevents the natural release of beneficial nutrients within the soil. A small amount of human ashes mixed into the soil or spread on the surface of the planting area shouldn鈥檛 harm plants or negatively affect soil pH.

  • Can you plant fireplace ashes in the garden?

  • It is important that you test the pH level of your soil before adding fireplace ashes to the garden. And you won鈥檛 want to spread them around plants that enjoy more acidic soil, like blueberries, gardenias, and azaleas for example. Wood ash contains potassium, lime, magnesium, and calcium, which are great for your garden.

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