What plants can use eggshells?
Michael King
Updated on March 02, 2026
Plants like tomatoes, peppers and eggplants in particular will benefit from shell fertilizer, Savio said. The extra calcium will help prevent blossom-end rot. Broccoli, cauliflower, Swiss chard, spinach and amaranth are also calcium-packed and could use extra from eggshells.
Can you put eggshells in potted plants?
Fertilize Potted Plants with EggshellsJust like in the garden, finely crushed eggshells provide an organic source of nutrition for houseplants, patio pots and hanging planters. Sprinkle the pulverized shells on the soil surface and they will break down over time.
Are egg shells good for flowers?
It turns out eggshells impart vital nutrients to soil, particularly calcium and potassium. Fast-growing plants deplete the soil of calcium very quickly, so giving them a source of new calcium helps. Egg shells make a fantastic fertilizer for outdoor flowers, vegetables and fruit trees.Are raw eggshells good for plants?
Using crushed eggshells to add nutrients to your soilEggs contain calcium, as well as traces of other elements including magnesium and phosphorus. It is great for adding nutrients to your soil and compost. Having said that, most soil in North America is already rich in calcium, so you may not need to add any more.
Are eggshells good for all plants?
The calcium from eggshells is also welcome in garden soil, where it moderates soil acidity while providing nutrients for plants. Eggshells contain such an abundance of calcium that they can be used almost like lime, though you would need a lot of eggshells to make a measurable impact.2 Min. Tip: How We Use Eggshells in Our Garden (Eggshell Calcium)
Which plants like eggshell fertilizer?
Plants like tomatoes, peppers and eggplants in particular will benefit from shell fertilizer, Savio said. The extra calcium will help prevent blossom-end rot. Broccoli, cauliflower, Swiss chard, spinach and amaranth are also calcium-packed and could use extra from eggshells.How often should I put eggshells in my garden?
The plants absorb the calcium from the eggshells and grow mostly problem-free. For maximum effect, sprinkle eggshells into each hole before planting. Then sprinkle additional shells around the base of your plants every two weeks.How do you add eggshells to plants?
To prep the eggshells, grind with a mixer, grinder, or mortar and pestle and till them into the soil. Because it takes several months for eggshells to break down and be absorbed by a plant's roots, it is recommended that they be tilled into the soil in fall. More shells can be mixed into your soil in the spring.Which plants like boiled egg water?
The plants that like boiled egg water are plants that love a more alkaline soil of a pH ranging from 7.5 to 8.0.
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Plants that like boiled egg water
- Anchusa azurea.
- Daylilies (Hemerocallis spp.)
- Delphinium.
- Easter lilies.
- Azalea.
- Lavender (Lavandula spp.)
- Clematis.
- Photinia.