What’s the key to a healthy, thriving landscape? Beyond water and sunlight, it’s all about applying the right types of fertilizers.
As a trusted provider of tailored tree services in Jackson, TN, our team at Spruce Up Tree Care knows a lot about supplemental plant nutrition. Learn more about it here.

Classification by Source
Gardening enthusiasts often debate between organic and synthetic fertilizers. Organic fertilizers come from natural sources like compost, manure, or bone meal. They release nutrients slowly, which reduces the risk of plant shock while promoting the growth of beneficial microorganisms in the soil.
Synthetic fertilizers, on the other hand, deliver quick, precise results thanks to their chemically engineered formulas. They’re perfect for inducing growth spurts or addressing severe deficiencies, but they can also harm soil health and even the surrounding environment when overused.
If you’re wondering when to use organic vs. synthetic fertilizers, we generally recommend the former, as they encourage consistent growth over time and carry less potential risk.
Classification by Nutrient Content
Plants need ample access to nitrogen, phosphorus, and potassium, as well as trace amounts of other minerals. Here’s a breakdown of their functions:
- Nitrogen: Nitrogen promotes healthy leaf growth by stimulating the production of chlorophyll, the main pigment that gives plants the ability to convert sunlight into food.
- Phosphorus: Do you have specimens that barely bloom or yield fruit? They probably lack phosphorus, which promotes healthy stems, roots, and abundant bud production.
- Potassium: Potassium is the pillar of a plant’s immune system. It helps utilize photosynthate (plant food) and allows quicker recovery from insect and disease damage or weather extremes.
- Micronutrients: In order to thrive, plants also need calcium, magnesium, sulfur, copper, and other minerals in smaller amounts.
Organic fertilizers have broad, varied nutrient levels because they come from natural materials with different compositions. You often get a more complex blend this way.
If an arborist diagnoses your plant with a specific deficiency, they might recommend a more targeted synthetic fertilizer. Manufacturers meticulously formulate these products to deliver exact ratios.
Classification by Application Method
We can also break down the types of fertilizers into granular and water-soluble, based on how gardeners use them.
As the name suggests, granular products are hard pellets that you sprinkle around the plant. They’re slow-release, so they require less frequent application.
Water-soluble fertilizers are fast-acting. Just mix them with water, and you can spritz them on your greenery for a quick boost. They’re not as long-lasting, so you may need to apply them more often.
How To Choose the Right Fertilizer for Your Jackson Garden
Are you overwhelmed by the different types of fertilizers and their uses? Start with organic options to give your flora a gentle boost. Plants rarely require synthetic nutrients unless they have specific issues.
Reach out to Spruce Up Tree Care for more insight. We know the best fertilizer types for plant growth stages, species, and soil conditions. Explore more of our blog and learn the benefits of organic fertilizers!