Bonsai Fertilizers are nutrients for bonsai trees grown in a small volume of substrate, where nutrient reserves quickly deplete. Here you will find liquid concentrates and foliar mists that support fine leaf structure, even growth, and leaf coloration. Regular, balanced fertilization helps maintain the condition of roots and shoots. The offer includes trusted brands Growth Technology and Mairol. Shipping to the entire European Union.
If you are just starting your bonsai journey or looking for a product for a specific species, explore the full range and compare available fertilizer forms. See all fertilizers and choose the right product for your needs.
How to choose bonsai fertilizer? Form and application
The choice of fertilizer mainly depends on the form of application and the stage of tree cultivation. The two basic groups are liquid concentrates and foliar mists, which are best used complementarily to provide bonsai with complete root and foliar nutrition.
Liquid concentrates are the foundation of bonsai nutrition. They dissolve in water and are used to water the substrate, delivering a full set of macro- and micronutrients to the roots in a controlled dose. Check out Bonsai Focus and Bonsaifreude Mairol — both products create a balanced nutrient solution supporting shoot growth and overall tree condition throughout the growing season.
Foliar mists are a convenient way to quickly supplement micronutrients directly through the leaves when the tree needs immediate support. Ready-to-use mists Bonsai Myst 300ml and Bonsai Myst 750ml are sprayed directly onto leaf blades without the need for prior dilution.
Tip: The small volume of substrate requires regular but lighter fertilization than potted plants — it is better to apply nutrients more often and at lower concentrations. Foliar mist effectively supplements micronutrients between concentrate waterings and reduces the risk of deficiencies.
Concentrates and mists — what you will find in this category
In the bonsai fertilizer category, we have gathered products in two complementary forms. Liquid concentrates form the basis of root nutrition and allow precise dose control, while foliar mists enable quick support of leaf condition and micronutrient supplementation during periods of intense growth.
This set covers the needs of both beginners and experienced growers — from daily care to emergency feeding. The full range of nutrients can be found in the all fertilizers category.
How to use bonsai fertilizer
Dosage — dilute the concentrate in water according to the manufacturer's recommendations, using rather lower concentrations. For bonsai, the rule is: more often but weaker, as the small substrate volume is easily overfertilized.
Frequency — fertilize most intensively during the growing season, from spring to late summer, when the tree produces new shoots and leaves. Regular feeding then gives the best results.
Foliar fertilization — spray the mist evenly on the leaves, preferably in the morning or evening, avoiding full sunlight. This is a quick way to supplement micronutrients.
Caution — do not fertilize dry root balls; the substrate should be slightly moist beforehand. After repotting the tree, wait a few weeks for the roots to regenerate before resuming fertilization.
Frequently Asked Questions
How often should bonsai be fertilized?
During the growing season (spring–summer), usually every 1–2 weeks using lower concentrate concentrations. In winter, when the tree rests, fertilization is reduced or stopped.
Concentrate or mist — which to choose?
Liquid concentrate is the basis of root nutrition, and foliar mist supplements micronutrients. The best results come from alternating the use of both forms.
Can bonsai be fertilized after repotting?
Not immediately. After repotting, wait a few weeks for the roots to regenerate. Fertilizing too early can damage the freshly trimmed root system.
Should bonsai be fertilized in winter?
During winter dormancy, fertilization of deciduous and coniferous trees is reduced or stopped. Tropical species kept warm can be fed lightly year-round.
Do you ship bonsai fertilizers to the entire EU?
Yes, we ship to all countries in the European Union.