Bonsai nutrients are vital for your plants, but it can be hard to know how much and when to feed your trees. There are so many variables involved – different trees, climates, design goals, etc.
The good news is that a little basic knowledge can help you get started. There are two main types of fertilizers: organic and synthetic. The main difference is that organic fertilizers are derived from natural sources like manure, fish, or seaweed and synthetic fertilizers are chemically formulated. The choice is up to you, but it is important to follow the manufacturer’s recommendations for application. Too much fertilizer can damage your trees and if used incorrectly, can cause root burn.
Regardless of the type of fertilizer you choose, you want to use one that is specifically designed for use with bonsai. This will ensure that the nutrient concentration is appropriate for your trees and will not be too strong or too weak.
Bonsai plant foods are typically formulated to contain three macronutrients: Nitrogen (N), Phosphorus (P), and Potassium (K). Some may also contain micronutrients, such as Iron, Manganese, Boron, Molybdenum, Zinc, etc.
Liquid bonsai tree fertilizers are soluble solutions that are applied while watering your plants. These can be diluted with water or applied straight from the bottle and are easy to use for beginners. They release the nutrients slowly, avoiding over-fertilization and also allow for flexibility in feeding frequency. Always choose a balanced fertilizer that is low in Nitrogen and high in Phosphorus for the best results.