How to Use Fireplace Ash for Gardening
Winter is the perfect season to collect your fireplace ashes either to store them in a save container or use them into your garden. When wood burns, nitrogen and sulfur are lost as gases, and calcium, potassium, magnesium and trace element compounds remain.
“Wood ash has a very fine particle size, so it reacts rapidly and completely in the soil. Although small amounts of nutrients are applied with wood ash, the main effect is that it is a liming agent.” (1) Furthermore, calcium works as soil amendment, helping to maintain chemical balance in the soil and improves water penetration.
1. As calcium and Potassium soil amendments
2. Enrich compost, enhance its nutrients by sprinkling in a few ashes to the mix.
3. Block garden pests. Spread evenly around garden beds, ash repels slugs and snails. Salt in the ashes dehydrates these insects.
Calcium and potassium are both essential to plant growth. Hereby, I am listing the symptoms of both deficiencies.
Symptoms of calcium deficiency:
– Necrosis at the tips and margins of young leaves,
– Bulb and fruit abnormalities,
– Deformation of affected leaves,
– Highly branched, short, brown root systems,
– Severe, stunted growth, and
– General chlorosis.
Symptoms of potassium deficiency:
– Yellow and brown spots on leaves
– Leaves drop off
– Smaller and fewer fruits
– Fruits appear deformed or small
BEFORE applying ashes to your plants please keep in mind that too much ash can increase pH or accumulate high levels of salts that can be harmful to some plants, so use ashes carefully. And don’t use it in acid-loving plants such as blueberries, cranberries, rhododendrons and azaleas would not do well at all with an application of wood ash.(1)
3 thoughts on “How to Use Fireplace Ash for Gardening”
It’s a freezing cold morning & I’m sitting in front of my wood stove dreaming about my new garden plot in the community gardens of Lyons, Colorado…thanks for the reminder about wood ash!!!
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