- Which is why coffee and black tea are good fertilizers
- Only use banana peels as additional fertilization
Roses, with their high nutrient requirements, are extremely heavy consumers. Regular fertilization is therefore essential so that the "Queen of Flowers" continues to sprout diligently and bloom tirelessly. But instead of providing your roses with expensive special fertilizer, you can also use coffee grounds or tea leaves for fertilizer - free of charge and sustainable.

Which is why coffee and black tea are good fertilizers
Anyone who likes to drink coffee or black tea throws valuable biomaterial in the garbage can every day. Coffee grounds and tea leaves contain plenty of nutrients even after they have been brewed; especially nitrogen, potassium and phosphorus. This valuable treasure belongs at least for further processing on the compost, but can also be used directly as fertilizer. Your roses will thank you! Incidentally, although coffee grounds and tea leaves are equally suitable for fertilization, coffee has a higher nutrient concentration.
Fertilize roses with coffee grounds
Roses (and of course other garden and potted plants) are easy to fertilize with coffee:
- After brewing, get the ground coffee out of the filter bag, pod, or whatever you're using.
- Dispose of the waste as usual and
- Spread the ground coffee out over a large area on a board or baking sheet.
- Let the coffee dry.
- Moist coffee powder should not be used for fertilization as it easily molds.
- Now fertilize your roses about every four weeks with the dried ground coffee.
- Use half a cup to a cup of ground coffee, depending on the size and age of the plant.
- Work the flour well into the soil.
- Please note that roses should no longer be fertilized by the end of June at the latest!
On the other hand, if you want to fertilize with tea, do not use the pure tea leaves, but water the plants with a strong infusion. You can also incorporate the tea leaves into the soil.
Only use banana peels as additional fertilization
Banana peels are also good for fertilizing, as they contain plenty of minerals and vitamins - especially potassium and phosphorus. However, the bowls are not suitable for the sole fertilization of roses, because they lack the nitrogen that is so important for growth. However, you can occasionally incorporate the crushed banana peels into the soil as a healthy supplemental fertilizer. But be careful: If possible, only use organic bananas, because fruits from conventional cultivation have a very high level of pollution.
tips
Fertilizing with ground coffee not only supplies the plants with valuable nutrients and also attracts earthworms, but also lowers the pH value of the soil. However, you can counteract hyperacidity by adding ground eggshells - these consist mainly of lime - to the coffee fertilizer.