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Oleander, botanically Nerium oleander, give the terrace or balcony a Mediterranean flair. In order for the oleander to thrive, you can help with fertilizers in this country. Since the plants tolerate organic fertilizers well, various home remedies for fertilization are possible. They not only help the oleander, but also protect your wallet, because many home remedies are based on leftovers that otherwise end up in the trash can. We have put together the best home remedies for the oleander here.
Nerium oleander is one of the so-called heavy feeders. These are plants that grow during the growing season many nutrients to need. That's why you can't actually over-fertilize the oleander. If it has nevertheless received too much fertilizer, you will recognize this by the brown edges of the leaves. In this case, the fertilizer is washed out of the soil with water. After treatment, the fertilizer is not used again until the leaves have recovered.
tip: If home remedies are used as fertilizers, they are organic fertilizers that need a longer time than mineral fertilizers to develop their effect.
In order to cover its nutrient requirements, the oleander needs a lot of nitrogen (N), potassium (K) and phosphorus (P). Since coffee grounds contain these elements, they are an inexpensive and proven home remedy for fertilizing oleanders.
Under no circumstances should you use the coffee grounds as fertilizer when they are hot. To avoid the formation of mold, he may only as a dry powder come into use. It is best to collect the coffee grounds in an open container. There he can dry well.
application and dosage
In order for the coffee grounds to work, they must regularly used for fertilization. Fertilizing every 14 days is recommended for the heavily consuming oleander. For larger plants, work a few handfuls of coffee grounds into the soil. Alternatively, you can put mulch on the scattered coffee grounds. If it is only scattered on the surface, it loses its fertilizing effect as it decomposes slowly. Mixing coffee grounds with compost encourages the growth of bacteria. And this, in turn, promotes the decomposition of food.
tip: If the oleander is transplanted, it is best to mix a few handfuls of coffee grounds into the new potting soil. In this way, it settles optimally in the soil and is well absorbed by the plant.
In addition to coffee grounds, tea grounds are one of the tried-and-tested home remedies for fertilizing Nerium oleander. It is also important for tea leaves that the tea leaves are well dried before they are used as fertilizer. In addition, the plant absorbs the nutrients better if the dried tea leaves are crumbled beforehand.
tip: If tea is left over, it can also be used as fertilizer when it has cooled down. To do this, simply moisten the soil with tea, but do not water.
application and dosage
For an optimal effect, it must be fertilized regularly with tea leaves. For heavy feeders like the oleander, fertilizer application is recommended every two weeks. Since tea grounds have a lesser effect than coffee grounds, you should use the tea grounds generous into the ground incorporate.
Wood ash also provides Nerium oleander with nutrients. However, it may only be used as a fertilizer if it no additives, such as particle board, plastic or paint. Depending on its origin, the wood can also contain heavy metals. Therefore, you should pay close attention to the origin of the wood for the fireplace if you want to use the ash as fertilizer.
tip: Ash from the charcoal grill is not suitable for fertilization.
The use of blue grain as a fertilizer is basically possible for oleanders. However, you should make sure that you take the plants with you not with nitrogen overfertilize. Although this promotes shoot growth, it has the side effect that only a few flowers form. Therefore, you should definitely follow the dosage instructions when fertilizing with blue grain.
When choosing this fertilizer, you should also take a look at the composition, because not every blue grain fertilizer is the optimal fertilizer for Nerium oleander. It is important that the blue grain fertilizer contains the following combination of nutrients and trace elements:
- nutrient combination
- nitrogen compounds
- potassium oxide
- magnesium oxide
- trace elements
application and dosage
When fertilizing with blue grain, you should economical handle the fertilizer so that the plants are not over-fertilized. So the rule is, less is more. When using blue grain, you should also make sure that the fertilizer dissolves well in the soil. If this is not the case, there will be an increased concentration of salts in these areas, which can damage the roots. Therefore, you should only apply blue grain to moist soil and then water the oleander vigorously so that the globules dissolve.
tip: To reduce the risk of root damage, do not apply blueseed directly to the trunk of the oleander.
Irrigation water with blue grain
If you want to apply blue grain with the irrigation water, then loosen maximum five grams blue grain in ten liters of water. Because the same applies here: less is more. That's why you should only add blue grain to the irrigation water once a month.
tip: Young plants should not be fertilized with blue grain, as their roots are extremely sensitive.