If your plants are not growing like you imagined they should, they could be grieving from a nutrient deficiency. Here are some signs and solutions to those deficiencies.
Nitrogen deficiency - yellow or pale green leaves.
Solution - add coffee grounds to your soil or plant nitrogen-rich plants close to nitrogen-deficient plants.
Phosphorus deficiency - darkening around edges of leaves, small or no flowers.
Solution - add a bone meal to the soil. You can additionally add used fish tank water to the soil if it doesn’t contain salt in the water.
Potassium deficiency - leaves with brown spots, brown or yellow veins, or yellow edges.
Solution - bury banana peels into your soil. Peels take some time to rot, therefore this is a process that will gradually boost your plant growth.
Magnesium deficiency - yellowing of veins and edges of leaves. Can seldom have a marbled appearance.
Solution - add Epsom salt to the soil before you water it.
Calcium deficiency - yellow spots between leaf veins, stunted growth, weak or dying stems.
Solution - add crushed eggshells to the soil. This approach will slowly nourish your plants, so make sure you till the eggshells properly into the soil to help the process along.
Any other tips? Let us know here in the comments section below!