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12 votes
Accepted

What does ash do to the PH of soil?

The carbonates and oxides that are left by the burning of wood can be used to neutralise acidic soil as wood ash is highly basic. It will contain all the elements that were present in the wood except ...
9 votes

What does ash do to the PH of soil?

Assuming this is wood ash from a wood burning stove. As a rule of thumb, wood ash contains 15-30% Calcium Carbonate (Lime), 3-8% Potassium (Carbonate and other salts), 1-3% Phosphorus and other trace ...
  • 3,893
4 votes

Add wood ash to compost heap

Speaking from direct experience, having lived for 20 years in the Canadian woods and heated entirely with a woodstove, it really depends on how much ash there is and whether it has been aged/weathered....
3 votes
Accepted

Add wood ash to compost heap

You can add wood ashes to compost piles, but only in small quantities, because ashes are alkaline and will increase the ph of your heap. Either add some and mix them in well, or add a thin layer ...
  • 130k
2 votes
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Is there a difference between pot ash, and wood ash?

I'm not sure who you mean when you say 'they had a fire all winter long'... wood ashes do contain small amounts of potash, but the actual potash content varies hugely on what type of wood/plant ...
  • 130k
1 vote

Wood ash + forest soil or leaf compost + legumes. Is this the perfect soil?

It could work, but it's not perfect. Wood ash has no nitrogen and sulphur and is rather low in phosphorus because much of it is lost during combustion. It is also extremely alkaline so you have to do ...
1 vote

Wood ash + forest soil or leaf compost + legumes. Is this the perfect soil?

There is no perfect soil, and so your recipe is not perfect. Plants have different requirements, also considering that crops (and vegetables) originates in different part of the world. Some ...

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