Skip to main content

Gardening 101: Different types of fertilizers

Getting the most out of your garden means learning about the unique social composition and atmospheric qualities of where you live. Choosing the best fertilizer depends on these and other factors, such as whether you would like to use organic or inorganic products. Knowing different fertilizer types and their uses will make you a more savvy and effective gardener.

While some gardeners do not use any fertilizer products at all, others rely on these to make their gardens grow the way they want to. Gardening, like many other aspects of home care, is very personal. You can follow the advice of others, but at the end of the day, it’s your landscape, and you can manage it any way you like. Gardening is a joy because it offers you a great deal of freedom and control. OK, let’s jump into the topic at hand.

benefits of gardening
goffkein.pro/Shutterstock

What are the three main types of fertilizers?

The first decision you will want to make when planning to purchase fertilizer for your garden is whether you would like to use organic or inorganic (also sometimes referred to as a non-organic) product. There are advantages and disadvantages to either product category.

Organic fertilizers are totally natural products. It can be argued that they are more sustainable and environmentally friendly in most cases. If you are planning to eat the plants you grow, choosing organic could be a healthy choice. That said, organic fertilizers are sometimes considered less potent than their chemically-enhanced competitors.

Non-organic fertilizers are often more expensive than their organic counterparts. They can also upset the natural pH and mineral content of the soil in your yard. That being said, inorganic fertilizers are prized for reviving dying plants by quickly delivering vital nutrients to them. Additionally, some gardeners feel they get a more consistent output using inorganic fertilizers.

In general, there are a variety of inorganic and organic fertilizers available to meet the needs of any gardener. This product category is further distinguished by three main fertilizer types: Nitrogen, phosphorus, and potassium-based products.

woman leaning over flowers in garden
Zoe Schaeffer/Unsplash

Nitrogen fertilizers

Nitrogen products are typically used during the middle phase of the growing cycle. This means that as your plant has already sprouted and started to develop, these products can supercharge growth and promote vitality. There are both inorganic and organic nitrogen-based products available.

Phosphate fertilizers

Phosphorus is essential for healthy plant growth and can be useful in all phases of the growth cycle. Plants with proper phosphate balance grow to their fullest potential. This mineral is especially beneficial for the seeding, flowering, and fruiting phases of growth.

Potassium fertilizers

If you’ve noticed yellowed or browned leaves on your plants, they might be deficient in potassium. This mineral plays an essential role in allowing your plants’ roots to become strong and hearty. Potassium also plays a role in making plants resistant to illness.

How do I fertilize my vegetable garden organically?

best october vegetables
Morinka / Shutterstock

Typically, organic fertilizer is applied to the soil of your plants every two weeks to every four weeks during the growing season. You will want to mix it into the soil, not let it clump on top. Any product you purchase will have clear instructions on how the manufacturers intend for you to use it for optimal results.

What is the best fertilizer for your garden?

The best fertilizer for your garden is the one that matches the needs of your specific climate and landscape. Knowing your growing region can be helpful. It can also help to know the natural pH and mineral content of your area. Choosing a fertilizer requires you to think not in terms of the best single product but in terms of, “What is the best product for my unique situation?”

Can plants grow in just fertilizer?

Many types of plants do not require fertilizer at all. Unfortunately, it is not really possible to reliably grow plants with only fertilizer. While this product is not essential, it can help many plants to achieve greater states of growth and vibrancy.

Get out there and start planting

benefits of gardening
Juice Flair/Shutterstock

Planning your garden can be a very fun and rewarding pastime. As you make plans and purchase your essentials, it really feels special when you finally get to start to see everything coming together. Few feelings are more rewarding than coming home to a show-stopping garden. Whether you grow simply to feed your household or to impress the neighborhood, the joy of gardening is one of life’s true pleasures.

It can be tough to learn everything there is to know about planting a garden in just one season. However, if you speak with professionals at your local garden center and other successful gardeners in your area, you will quickly develop your skills. Even if you have trouble achieving everything you set out to do, gardening is always a learning experience. With time and review, your skills will improve.

Fertilizer is a useful product that is often referred to as plant food. While not every plant will require fertilizer, many will grow much better with the right mix of nutrients and minerals. Choosing the right fertilizer means knowing what is best for the unique environmental composition of your property. Even within certain growing regions, there can be many differences in pH, mineral content, and many other qualities that can affect the growth of plants.

Editors' Recommendations

Scaevola: How to grow these uniquely shaped fan flowers for a stunning summer garden
Spruce up your outdoor space with these cool flowers
White fan flowers

There are many factors that can make a plant appealing. Some have bright colors or interesting patterns, others have odd textures, and some have strong scents or flavors. Whether your garden has a specific design theme or aesthetic or you plant anything that catches your eye, we have a unique flower that you’re sure to love. Scaevola, also called fan flowers, are appealing for their unique shape. Curious about this interesting flower and how you can grow it for yourself? We’ll answer all your fan flower questions in this scaevola care guide.
What are fan flowers?

Fan flowers are tropical plants native to the Polynesian islands and Australia. This gorgeous, low-lying shrub is sometimes also called beach cabbage and sea lettuce, along with the Hawaiian names naupaka, aupaka, and huahekili. There are many species of scaevola to choose from, with varying heights and flower colors (although the most common colors are white and purple), but the main draw of these plants is their fan-shaped flowers.

Read more
What is a chaos garden, and why should you start one this spring?
Is this approach to gardening for you?
A mix of colorful wildflowers

One of TikTok's latest gardening trends, chaos gardening is exactly what it sounds like: It's a low-maintenance approach to gardening that requires little planning and upkeep. With chaos gardening, you'll be using leftover seeds, picking out easy-going native plants, and being OK with some plants simply not working out. Think of it as survival of the fittest — whatever sticks will stick. There's no need to excessively plan out your spacing and consistently prune. Still, there's a method to the madness, since you want to keep your garden resilient against pests and diseases. If you're starting your very own chaos garden, here's what you need to know.

What you need to know about chaos gardening

Read more
Water lily vs. lotus: What’s the difference and which is right for you?
Here’s what you need to know about these unique flowers
Lotus flowers in a lake

Water features are a beautiful way to make your yard or garden feel more serene. They can also provide a water source for local wildlife, including migrating birds in search of a drink. Ponds can also be a unique type of garden, and there are many wonderful water plants you can grow in your pond to support birds, frogs, and fish or just to look nice. Two of the most common pond plants are water lilies and lotuses. However, these plants are also frequently mistaken for each other.

In this guide to the water lily vs. lotus, we’ll explain the similarities and differences between these plants so you can choose the best one for your pond.
Why are water lilies and lotuses easy to confuse?

Read more