Fertilizers for olive trees are nutrients that support the growth, leaf condition, and fruiting of olives (Olea europaea) grown in pots and in the ground. In this category, you will find liquid concentrates from renowned brands Growth Technology and Mairol, designed specifically for the needs of olive trees. Well-balanced fertilization helps maintain healthy, dark green leaves, strengthens the root system, and promotes regular fruiting. The products are easy to dose and prepare as a solution. We ship throughout the entire EU.
If you are looking for nutrients for other ornamental and useful plants, check out our other items in the all fertilizers section. Below, we explain how to choose the right concentrate for your olive tree, how to determine the dose, and when to fertilize to keep your tree in good condition throughout the season.
How to choose fertilizer for olive trees? Composition and use
Olive trees respond best to liquid concentrates, which can be applied in two ways. Soil fertilizer is given with watering, allowing nutrients to reach the root zone directly and support the growth of the entire tree. Foliar fertilizer is sprayed on the leaves, quickly replenishing deficiencies and improving leaf blade condition. In practice, both methods complement each other well, and the choice depends on the plant’s condition and the time of year.
Our offer includes concentrates in various sizes: Olive Focus 300ml for beginners and smaller collections, Olive Focus 1L for regular fertilization of larger trees, and Olivenoptimal Mairol as an alternative with a similar purpose.
Olive trees have two key moments: maintaining good condition before winter and supporting fruiting during the season. Adjust the dose according to the tree size and season, and the best results come from regular fertilization rather than occasional heavy feeding. Smaller potted plants need weaker solutions applied more frequently, while larger specimens in the ground tolerate full label doses. In spring and summer, the tree grows most intensively, so fertilize most often then, gradually reducing doses in autumn to prepare the olive tree for dormancy.
Olive tree concentrates — what you’ll find in this category
We have gathered three proven liquid concentrates designed specifically for olive trees. They differ in volume and brand but share the same goal: to provide the olive tree with a balanced set of nutrients supporting growth, leaf condition, and fruiting. Thanks to their liquid form, they are easy to dilute and apply both by watering and foliar spraying.
The most popular choice is Olive Focus 1L, which lasts for a longer fertilization season. If you are just starting, opt for a smaller package, and for a larger number of trees, consider the one-liter size.
How to use fertilizer for olive trees
Dosage
Always dilute the concentrate with water according to the product label instructions. Do not exceed the recommended concentration, as excess nutrients can harm the roots.
Frequency
Fertilize during the growing season, from spring to early autumn, regularly and in moderate doses adjusted to the size of the tree.
Winter care
During dormancy and cold winter periods, reduce fertilization to allow the plant to rest and prepare for the next season.
Precautions
Do not fertilize dry root balls. First, lightly moisten the substrate, then apply the diluted solution to avoid root irritation.
Frequently Asked Questions
How often should I fertilize a potted olive tree?
During the growing season, usually every 1–2 weeks with a diluted solution according to the label. Smaller potted trees require weaker, more frequent, but moderate doses.
Should I fertilize olive trees in winter?
No. During cold winter dormancy, fertilization should be greatly reduced or completely stopped and resumed only in spring.
Foliar fertilizer or soil watering?
Both methods are effective. Watering nourishes the roots and the whole tree, while foliar application quickly improves leaf condition. The best results come from combining both.
Does fertilizer support olive fruiting?
Yes. Balanced, regular fertilization during the season promotes fruiting and helps maintain good tree condition before winter.
Do you ship to the EU?
Yes. We ship our olive tree fertilizers throughout the European Union.
