Plants That Need Calcium

Last Updated on April 9, 2022 by Maria B.

Some plants that need calcium will not be able to blossom optimally until they are provided with sufficient calcium. Different plants have their different nutrient requirements and unless they are satisfied, growth is stunted.

One of the key requirements which plants require for proper growth is calcium. An understanding of this will go a long way to influence the fertilizer applied. A fertilizer that adds a nutrient that is not required by a plant is of less use.

This article explains what plants really require calcium for growth. The result you will obtain when you provide sufficient calcium to calcium-loving plants are also enumerated.

Although all of the plants to be discussed in this article may require calcium for growth, this requirement may differ. Some plants need more calcium than others.

Before we delve into plants that really need calcium to flourish, let’s discuss what calcium means as used in this article.

Table of Contents

What Calcium Means For Plants

Calcium is very essential for virtually all living organisms, including plants.

Confused as to what calcium really means. It is simply an alkaline material with wide distribution in the earth. According to research, calcium is the fifth most abundant element by mass.

Calcium is usually found in sedimentary rocks in the form of calcite, gypsum, and dolomite. Found in as many as 80 compounds. This may be referred to as calcium salts.

What Calcium Means For Plants


All animals and humans require a reasonable amount of calcium to flourish. While you may eat plants and animals as a calcium source, this is not the case for plants. You may wonder how plants actually get calcium.

The secret is that soil microbes also need calcium, so they eat calcium compounds, converting them to a form plants can use. Knowing and providing the best calcium required by these microbes is the best way to optimize calcium for plants.

Read more about How To Build A Worm Box For Raising Fishing Worms

Which Plants Really Need Calcium

So, what plant really needs calcium? Although calcium is required by virtually all plants, some plants really need calcium in large proportion.

Knowing the calcium-loving plants will go a long way to aid soil preparation when planting such plants.

The following plants are especially responsive to calcium:

  • Apples

Calcium is essential to the growth of apples. This nutrient is required in large quantities from planting to harvesting so as to prevent premature senescence and the development of disorders such as bitter pit during storage.

The effectiveness of calcium provided to an apple farm is largely influenced by the quantity applied to a particular farm. The minimum amount of calcium chloride flakes or calcium nitrate prills that should be applied during a planting season is about 72kg to 110kg respectively.

Which Plants Really Need Calcium - Apples
  • Citrus

Considered the most abundant mineral element by weight found in a citrus tree is calcium. This element makes up about 1% of a citrus tree’s dry weight. Calcium in citrus is concentrated in the leaves and is a major element for proper root development and functioning.

Where there is a calcium deficiency, root growth becomes severely restricted and easily prone to bacteria and fungi infections.

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  • Carrots And Potatoes

This plant essentially desires calcium for proper growth. For carrots, an insufficient supply of this element results in diseases such as cavity spots, sclerotinia, shading, et cetera in the plant.

Both carrots and potatoes require a huge amount of calcium in their roots. Apply directly to the root zone. This element allows the plant to have a steady uptake during the tendency of the growing season.

  • Lettuce

This is one vegetable that desires calcium in sufficient proportion. Lettuce production usually calls for about 100 to 150 ppm calcium in their growth circle.

Very importantly, calcium required by lettuce is to be provided by water supplied to the soil as opposed to direct application to the soil. Incorporation of a calcium-nitrate-based fertilizer into the water used for watering the plant will greatly improve yield.

Southern Ag Calcium Nitrate – 5 Pound Bag

  • Tomatoes

If you desire to have the best tomato yield, ensure to add calcium late in fall or early spring. Where this is not possible, do so before you begin planting.

Calcium deficiency in tomatoes may result in root damage and an improper channeling of available nutrients. Where the soil is very acidic, adding a reasonable amount of calcium before planting tomatoes will go a long way to reduce this acidity.

  • Extra Note

Apart from these plants discussed above, there are a plethora of other plants with huge calcium requirements. Some of these plants include pepper, broccoli, brussels sprouts, cabbage, cauliflower, cherries, conifers, cotton, melons, grapes, peaches, and tobacco.

How Does Calcium Affect Plant Growth

One of the positive effects of calcium to plant is that it helps in building strong cell walls. This in turn helps keep the plant upright.

In addition, calcium application in the soil helps to counteract the effect of alkali salts and other organic acids. Adding calcium to the soil has the effect of giving your soil vitamin.

Calcium also helps to ensure that a plant has good leaves and tissues. Stunted leaves, brown spots may also begin to appear along the edges and towards the center of the leaves.

Finally, calcium aids root growth and development.

Tips On How To Raise Calcium In Soil

Now, you’re aware that calcium may be present in the soil but not accessible to the plant. There may therefore be a need for you to raise the calcium in the soil and make it accessible to your plants.

You can do this by adding lime to the soil during autumn. Also, an addition of eggshells in your compost will aid the plant consumption of calcium. In a situation where you recognize a calcium-deficient plant, you may apply foliar to the plant.

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What plants benefit from calcium?

Some plants that benefit from calcium include pepper, tomatoes and eggplants.
Calcium is a macronutrient that contributes to plant growth, development, and disease resistance. It is necessary for cell walls and chlorophyll synthesis.
It is an important component of the cell membrane and helps maintain the structure of the cell wall. Calcium also serves as a signal molecule in the plant’s response to stress. Calcium ions help trigger the release of various substances from plant cells, such as hormones and enzymes, which then go on to influence the surrounding cells. This results in a chain reaction of reactions that can lead to defense mechanisms or to plant growth and development.

Is calcium good for plants? is.
The role of calcium in plant growth and development is multifaceted. 1. Calcium helps maintain the structure of cell walls The presence of calcium in cell walls helps protect cells from breaking down. When calcium ions are removed from the cell wall, this causes the cell membrane to swell, leading to cellular lysis or death.
Calcium is necessary for the formation of seeds. During seed development, calcium is transferred to the embryo, where it forms part of the seed coat. In the case of tomato fruit, calcium is transferred from the seed coat into the fruit flesh. Calcium is also important for the absorption of iron. Iron deficiency is a common problem for plants. Calcium is also essential for many enzymatic processes in plants.

How do you know if a plant needs calcium?

The amount of calcium required depends on the species of plant, the soil type and growing conditions. Calcium is needed in small amounts, so your plant may not show any visible signs of deficiency until you start adding calcium to the soil. There are three ways to test whether your plant is deficient in calcium. 1.The first way is to look at the soil pH. If the soil is too acidic (below 2. or alkaline (above 3., then the plants may be calcium-deficient. If the soil pH is in the middle, 4.0, then it is probably fine. Another way to tell if a plant needs calcium is to look for root damage or leaf yellowing. Roots are sensitive to calcium and a deficiency can cause the roots to wilt. Leaf yellowing indicates a deficiency in calcium because it affects photosynthesis. The third way to test for calcium deficiency is to check the leaves of the plant. If you find a white powdery substance on the surface of the leaves, then the plant may be deficient in calcium.

What is the fastest way to add calcium to soil?

There are a couple ways that are widely practiced. The most common is by using bone meal, which is a finely ground and processed bone. It’s usually sold as fertilizer and comes in bags with nitrogen, phosphorus, and potassium (NPK). Calcium comes in bags as well, but not always. There is also calcium carbonate, which is usually sold in bags with NPK.

Calcium carbonate is often used to make sure that you don’t have too much nitrogen or phosphorus in your soil, as it can compete with those elements for absorption. If you’re growing a food crop, like a salad mix, and need to add calcium, calcium carbonate would be the way to go. If you’re growing plants like alfalfa or clover, you would need to use bone meal.

Conclusion On Plants That Need Calcium

While all plants and animals require calcium for their proper growth and development, some plants require it specially.

When planting this plant, you must pay attention to its calcium requirement. Making arrangements for this when preparing the soil will go a long way to improve yield.