Sources of calcium for your garden.

Worm tea and manure teas:
Vermicompost and animal manures are a good source of calcium.
Feeding your plants with worm tea and or animal manure teas is a good way to get calcium to your plants
with the added benefit of being a general nutrient boost

Calcium Nitrate:
This is a fast-acting source of calcium that can be dissolved in water and applied to the soil.
It is particularly useful for plants that are showing signs of calcium deficiency, such as blossom end rot in tomatoes.

Limestone (Calcium Carbonate):
This is a common natural source of calcium that helps raise soil pH,
making it suitable for plants that prefer alkaline conditions.
It is often used to amend acidic soils and provides a slow-release form of calcium

Gypsum (Calcium Sulfate):
Gypsum is beneficial for improving soil structure, especially in clay soils.
It provides both calcium and sulfur, which are vital for plant health.
Gypsum does not alter soil pH, making it a good choice for maintaining existing soil conditions while adding calcium.

Dolomite Lime:
This is a type of limestone that contains both calcium carbonate and magnesium carbonate.
It not only supplies calcium but also magnesium, which is another essential nutrient for plants.
Dolomite lime is particularly useful in soils that are deficient in magnesium.

Bone Meal:
While primarily a source of phosphorus, bone meal also contains calcium.
It is beneficial for root development and can be used in conjunction with other calcium sources to enhance nutrient availability.

Crushed Eggshells:
A readily available and sustainable option, crushed eggshells can be added directly to the soil.
They decompose slowly, providing a gradual release of calcium over time.

Antacid tablets:
Antacid tablets are mainly comprised of calcium carbonate.
Dissolve 4 tablets in 1TBS vinegar. When the fizzing has stopped the calcium is dissolved and the vinegar neutralised.
Add 1 cup boiling water and let it cool. Use this solution at a 20 to 1 ratio (1 cup to 5lt water or 50ml to 1lt)
Water the plants with this drenching the leaves as well.

CalPhos Tissue salts:
These are a good source of readily available calcium. Just put a few tablets in the soil around each plant.

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