How to Choose the Right Fertilizer
Learn which fertilizer works best for what plants
CORRECTION: Roger misstates the functions of Potassium and Posphorous in this video. Potassium helps with chemical reactions and Phosphorous helps with root growth.
- A soil test will determine what nutrients are lacking in your soil and need to be augmented.
- Follow all manufacturer’s instructions to ensure plants are overly fertilized and susceptible to burning.
- The three main nutrients a plant needs are Nitrogen, Phosphorous, and Potassium, and these are noted as ratios on fertilizer containers.
- Nitrogen-heavy fertilizers encourage green top growth on lawns.
- Phosphorous-heavy fertilizers help with root growth (this is mis-stated in the video).
- Potassium-heavy fertilizers help with chemical reactions (this is mis-stated in the video).
- Liquid based fertilizers are good for establishing planters like a window box because they work quickly, then a granular slow-release fertilizer can be used over time.
- Organic fertilizers have less nutrient density and are better for slow release applications like trees and shrubs.
Fertilizer can be found at garden centers or home centers.