Lemon or orange trees originally come from the warm, southern countries, but we also like to cultivate them in pots on the balcony or terrace. With proper care, you can even harvest your own fruit. However, this includes the optimal supply of nutrients to the citrus trees, whereby a special citrus fertilizer can help. Read our guide to what you need to look out for when buying one and which brands are recommended.

Only if the citrus trees get the necessary nutrients, there is a chance of a few fruits

Our recommendations

our recommendation
COMPO BIO citrus plant fertilizer for all types of citrus plants, natural special liquid fertilizer, 500 ml
6.49 EUR To the product
quantity / packaging 500 milliliters
fertilizer type organic-mineral
fertilizer form liquid fertilizer
NPK composition 3,5 + 0,5 + 6
ingredients 41 percent organic matter
long-term effect none

The Compo Bio citrus plant fertilizer is specially designed for soil cultures and contains everything that citrus plants and other Mediterranean plants (e.g. fig and olive trees) need. The easy-to-use liquid fertilizer consists of 41 percent organic substances from the food, feed and semi-luxury food industry of both animal and plant origin. The nutrients are immediately available to the plants, but the fertilizer does not have a long-term effect and must therefore be applied weekly. Since it is an organic fertilizer, the fruits are of course edible. At the recommended dosage of seven milliliters per liter of water, 500 milliliters is sufficient for a small to medium-sized citrus tree for about a year.

our recommendation
Dehner organic citrus plant fertilizer, 1.5 kg, for approx. 15 plants
7.49 EUR To the product
quantity / packaging 1.5 kilograms
fertilizer type organic
fertilizer form solid, granules
NPK composition 6 + 4 + 7
ingredients vegetable and animal substances
long-term effect yes, 8 weeks

The citrus plant fertilizer from Dehner also scores with purely organic organic quality. For this, the manufacturer uses entirely vegetable and animal substances from the food, feed and semi-luxury food industry, including bone and feather meal. These are rich in important minerals and trace elements. The contained malt germs also ensure a balanced diet for the citrus plants with important trace elements. Furthermore, natural earthworm humus is added to the Dehner citrus fertilizer, which is supposed to improve the water storage capacity of the substrate. Thanks to the long-term effect, you only have to fertilize your citrus trees every eight weeks.

our recommendation
Meine Orangery citrus fertilizer for all citrus plants - [1 kg] - premium plant fertilizer - do without ready-to-use liquid citrus fertilizer for your plants - citrus fertilizer for lemon trees
EUR 16.90 To the product
quantity / packaging 1 kilogram
fertilizer type mineral
fertilizer form solid, granules
NPK composition 20 + 5 + 15 (+ 2% Magnesium)
ingredients purely mineral nutrient salts
long-term effect no

The professional citrus fertilizer from the citrus experts from "Meine Orangerie" scores with a high proportion of nitrogen and potassium, and higher amounts of magnesium, iron and other minerals and trace elements are added. As reported in customer reviews, the fertilizer granules are particularly suitable for use with medium-hard to hard (i.e. calcium-rich) water. For rainwater or soft water, on the other hand, you should also administer Ferty Basis and Ferty Cal from the same manufacturer to avoid calcium deficiency. The concentrate is very productive - ten grams (that's half a measuring spoon) of fertilizer granules are sufficient for ten liters of irrigation water. The manufacturer recommends fertilizing once or twice a week between April and October.

Purchase Criteria

fertilizer form

liquid fertilizer: Liquid citrus fertilizers are particularly suitable for citrus plants, which are usually kept in pots in our latitudes, because they are easy to dose and administer. These are concentrates that must always be diluted with the irrigation water and must never be given pure to the soil or the plants.

fertilizer granules: Solid fertilizer, a so-called granulate, is also suitable and is immediately ready for use. All you have to do is dose the powder with the usually enclosed measuring cup according to the manufacturer's instructions and gently work it into the substrate surface. Then water the citrus tree vigorously - done. Some fertilizer granules can also be dissolved directly in the irrigation water and administered together with it.

fertilizer sticks: Fertilizer sticks (€4.48), which are of course also available especially for citrus plants, are particularly practical for fertilizing potted plants. You simply insert these sticks into the substrate, then water and then have several months of rest on the fertilizer front - fertilizer sticks usually contain a long-term fertilizer that is released gradually and supplies the plants for several months.
our recommendation

Dehner organic fertilizer sticks for citrus plants, 4 x 30 pieces (120 pieces)
13.99 EUR To the product

fertilizer type

mineral fertilizer: Mineral fertilizers have the advantage that the nutrients they contain are immediately available to the plants. However, these fertilizers do not have a long-term effect, which is why you have to feed the plants once or twice a week.

Organic Fertilizer: Organic fertilizers, on the other hand, have a natural long-term effect, so they do not have to be applied as often as they only release their nutrients through the gradual decomposition of the material. The downside here is that there are no readily available nutrients - which can be a problem if the leaves are beginning to turn yellow.

Organic mineral fertilizer: An organo-mineral fertilizer is probably the best choice in this case, as it combines the advantages of mineral and organic fertilizers while reducing their disadvantages. Fertilizers with both mineral and organic ingredients provide both immediate and slow-acting nutrients to plants.

nutrient composition

Since citrus plants react very sensitively to a lack of nutrients or an incorrect nutrient composition, the NPK content and the other minerals and trace elements in the fertilizer must be carefully monitored. Nitrogen and potassium should be contained in roughly equal parts, while the phosphate content can be somewhat lower. A fairly high proportion of magnesium (approx. two percent) as well as iron, boron, copper, zinc, manganese and molybdenum is also important.

long-term effect

Citrus plants need fertilizer at least once a week during the main growing season between April and October. A long-term fertilizer can help here, because if you use one, you only have to fertilize every eight to 12 weeks. Note that citrus plants also need to be fertilized once a month during the winter, but a long-term fertilizer is not suitable for this - the dose is simply too high for the winter break. Therefore, a combination of both types of fertilizer is recommended, alternating every six months.

ingredients

If you value animal-free ingredients, you should look closely at the label of organic or organo-mineral citrus fertilizers. These often consist to a large extent of animal waste from the food, beverage and animal feed industries. Bone, hair and feather meal is therefore used for these fertilizers. In principle, however, this is not a problem, since these substances have a high proportion of minerals and trace elements.

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frequently asked Questions

Which plants are citrus plants?

Citrus plants (Latin Citrus) form a genus of plants within the Rutaceae family and probably originally come from China. In addition to lemons and oranges, tangerines, grapefruits, grapefruit, kumquats, kaffir limes, pomelo, clementines, limes, and satsumas also belong in this group. Many of these species are crosses within the family - for example, the pomelo is a cross between a pomelo and a grapefruit.

For which plants is citrus fertilizer suitable?

With citrus fertilizer you can not only feed citrus plants, but also other plants with similar nutrient needs. These include many Mediterranean plants such as fig and olive trees or herbs such as lavender, rosemary and thyme. These fertilizers are also well suited for kiwi and passion fruit plants (which you can easily grow yourself from seeds).

Can I also fertilize my banana plant with citrus fertilizer?

Banana plants, of which there are even conditionally hardy varieties for the garden, have been cultivated as potted or garden plants for some time. However, bananas are extremely heavy consumers, which is why the rather low-dose citrus fertilizers are not suitable for these exotic species. Incidentally, the same applies to tomatoes, cucumbers and other plants that are often cultivated on the balcony, e.g. B. Geraniums.

When and how often should you fertilize citrus plants?

Unless you use a slow-release fertilizer, citrus plants must be fertilized at least once a week between April and August, and then every two weeks in September and October. Monthly, weakly dosed fertilizer is also necessary for light wintering at more than 12 degrees Celsius. Otherwise, the trees should be transplanted to fresh substrate about every two to three years.

Which manufacturers offer high-quality citrus plant fertilizers?

Special citrus fertilizers are available from all well-known brand manufacturers such as Compo, Substral, Dehner, Plantura or Neudorff. The products of the well-known brands of "Meine Orangerie" and Green24 are also of high quality, although these are unfortunately only mineral fertilizers without long-term effects. Nevertheless, the users are very satisfied.

equipment

citrus soil

our recommendation
Compo SANA citrus plant soil with 12 weeks fertilizer for all citrus plants and Mediterranean plants, growing medium, 10 liters
8.99 EUR To the product

In addition to a specially tailored fertilizer, sensitive citrus plants also benefit from citrus plant soil. The special soil from Compo Sana offers optimal growth conditions for strong and healthy plants. The product contains a starter fertilizer that supplies the plants with all the important nutrients for up to 12 weeks. The nutrients are released slowly and gently so that the roots are not damaged.

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