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Proper nutrients are needed for any plant to survive. Fertilizers help add these nutrients to the soil so that your plants can flourish. Finding a proper fertilizer means that you will need to understand the basics of macronutrients for plants, particularly N-P-K (nitrogen-phosphorous-potassium). You will also want to learn about micronutrients and how the pH of your soil may be affecting your plants.

Make sure to check out our other gardening articles. Click on any of the articles below to find the appropriate fertilizer for your plants!

The 5 Best Fertilizers for Watermelon Watermelon is a flowering plant that is part of the Cucurbitaceae family, but most people know it as the sweet, refreshing melon with red flesh. For optimal growth, you will need the ideal nutrients.
Iron Deficiency in Plants Iron deficiency in plants can cause a condition called chlorosis, which results in the yellowing of its leaves. Iron is a necessary element for photosynthesis to take place. Learn more about how iron impacts your plants.
Copper Deficiency in Plants Copper is an essential micronutrient for plants. Without it, you will notice that leaves will start dying back and the tips will start twisting. Come learn why this micronutrient is so important.
Chloride Deficiency in Plants Chloride is an important micronutrient for plants. It is involved in photosynthesis as well as keeping osmotic pressure. That being said, high concentrations can be toxic as well. Learn about all the essential functions chloride plays.
The 5 Best Fertilizers for Avocado Trees Avocados are know for their unique, nutty flavor that some people describe as buttery. Avocado trees can produce 200 to 300 fruit once it is mature and if it is given the proper fertilization. Whether you start from seed or buy a transplant from a nursery, you'll want to make sure its needs are met.
The 5 Best Fertilizers for Boxwood The common boxwood is a rounded evergreen shrub or a small tree. It is often used as ornamentals as borders or hedges. Give you're shrub what it needs to grow robustly and remain healthy.
The 5 Best Fertilizers for Azaleas Azalea flowers are difficult to mistaken with their funnel-shaped, somewhat two-lipped petals. The blooms are absolutely mesmerizing. You'll want to make sure your plants receive the proper N-P-K ratio to encourage flowering.
The 5 Best Fertilizers for Citrus Trees Citrus tree is a broad category that contains many different flowering and fruiting trees. Well known varieties include oranges, lemons, grapefruits, and limes. To grow properly it will need the proper fertilizer.
Micronutrients for Plants There are 7 essential micronutrients for plants. Even though they are only needed in small quantities, this does not make them any less important than other types of nutrients. Without these essential nutrients your plants will suffer diseases and poor growth.
What Does Sulfur Do for Plants Sulfur is a secondary plant nutrient that is important for chlorophyll development. Come learn about its role in plant growth and what happens when there is a deficiency.
What Does Magnesium Do for Plants? As a secondary nutrient, magnesium is necessary for multiple processes within a plant. It is easy to supplement with a trick that we will talk about in our article.
What Does Calcium Do for Plants Calcium is responsible for holding the cell walls of plants together. When it is deficient in a plant, many symptoms will start to appear. Come learn the importance of calcium and how to spot deficiencies.
Secondary Plant Nutrients Secondary plant nutrients include calcium, magnesium, and sulfur. Although they are not talked about as often as nitrogen, phosphorous, and potassium, they are contribute to healthy growth.
Fertilizer Numbers – Meaning? Almost all fertilizers will list N-P-K ratios on the front of their product. But what exactly do these numbers mean? Each one is essential to the development of your plant.
Manganese Deficiency in Plants Manganese is helps to sustain metabolic roles at a microcellular level for cell compartments. It is vital to processes of photosynthesis. As such it is necessary for growth and development.
Boron Deficiency in Plants Boron is integrally important in the cell growth of plants. As a micronutrient, boron is necessary for the healthy growth of plants. Deficiencies will result in stunted growth and brittle leaves.
The 5 Best Fertilizers for Fiddle Leaf Fig Tree Fiddle leaf fig, also known as Ficus lyrata, is a popular indoor tree known for its violin-shaped leaves that are strikingly green and glossy. Feed your fiddle leaf with appropriate plant food and it is sure to be a frequent discussion topic.
The 5 Best Fertilizers for Daylilies Daylilies are known for their vibrant flowers that open early in the morning and wither during the following night. To get beautiful blooms, you're going to want to use fertilizer with quality ingredients.
The 5 Best Fertilizers for Cabbage The cabbage plant, also known as Brassica oleracea, can easily be grown in a home garden. The result will be a beautiful vegetable that you is nutritious and delicious. If you want a beautiful harvest, you will need to invest in the correct fertilization for your cabbage.
The 5 Best Fertilizers for Collard Greens Collard greens are a staple dish in Southern cooking. With their dark green leaves and a flavor that is a cross between cabbage and kale, you definitely will want to trying growing it. However, to do so, you will need the right nutrients.
The 5 Best Soils for Fiddle Leaf Fig Trees Fiddle leaf fig trees can flourish even if they're kept as houseplants if they are given the right circumstances. Using the right soil that their roots sit in is essential. Soil should be seen as a complex mixture of water, air, minerals and living organisms. As such, it is necessary to buy the best one possible.
The 5 Best Fertilizers for Dahlias Dahlias are tuberous perennials with mesmerizing flowering heads. Simply by looking at them, you can see why they represent elegance, strength, and creativity. For the prettiest bloom, you will need the correct N-P-K ratio to ensure that it directs its energy into producing beautiful flowers.
The 5 Best Fertilizers for Ferns Ferns are nonflowering vascular plants that are capable of reproducing through spores. To get robust growth, they need adequate nutrients with the correct N-P-K ratios. Without it, they will not flourish.
The 6 Best Fertilizers for Peonies Peonies are perennials that produce large single or double flower blooms that are white, pink, or red. With the proper nutrients, you will ensure a beautiful and healthy looking peony flower. These blooms will add color and a beautiful fragrance to your garden.
The 6 Best Fertilizers for Hostas Hostas are a favorite among gardeners because they are low maintenance and they produce lush, green foliage. Even though they are easy to care for, they still need a quality fertilizer for optimal growth.
The 5 Best Fertilizers for Arborvitae Arborvitaes are evergreen trees that thrive with proper fertilization. We typically recommend an N-P-K ratio of about 3-1-1 for these thujas so that they can flourish on your property.
The 6 Best Fertilizers for Plumeria Developing beautiful blooms on plumerias is not difficult with the proper nutrients. This guide will show you everything needed for the ongoing maintenance of a plumeria so that you can develop show-stopping flowers!
Best Fertilizers for Hydrangeas Hydrangeas can flourish on all purpose fertilizers such as 10-10-10 NPK ratios. If given the proper nutrients at the correct times, they will develop vibrant flowers and robust roots.
Best Fertilizers for Roses Roses are part of the Rosaceae family. Their flowers have become widely known to represent love and romance. Growing these perennial plants in your own garden is possible, but you will need the right water, sun, and fertilization. Make sure you feed your plant the appropriate amount of nutrients.
The 5 Best Fertilizers for Geranium Geraniums are popular bedding plants that flourish when given correct nutrients. The correct plant food will re-invigorate the soil and be absorbed by the the plants root zone.
The 5 Best Fertilizers for Crepe Myrtle Crepe myrtle, also known as lagerstroemia, is a species of evergreen trees and shrub that produce colorful blooms. Make sure to find a good product to deliver the correct N-P-K ratio to your plant.
The 5 Best Fertilizers for Gardenias A gardenia is a flowering plant native to tropical and subtropical regions. The flowers that they produce are elegant and delicate. Finding the correct product to feed your geranium is important for ongoing maintenance and optimal growth.
The 5 Best Soil for Cactus Soil is vitally important for the survival and growth of cacti. Since cacti and other succulents are native to dry climates, they need the soil that their roots rest in to have proper drainage and aeration.
The 5 Best Fertilizers for Blueberries How can you not love a delicious and nutritious blueberry? Raise your own blueberry bush, but make sure to use the proper nutrients to allow it to flourish and yield a good harvest.
The 5 Best Fertilizers for Petunias Petunias are one of the most popular flowers since they have such long flowering periods. Give your plant the correct nutrients and it will flourish with beautiful blooms.

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About the author: Carley Miller is a horticultural expert at TheGreenPinky. She previously owned a landscaping business for 25 years and worked at a local garden center for 10 years.