Banana peels as fertilizer for roses - ideas for composting

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In skilful rose care, the balanced supply of nutrients plays a key role. Banana peels make a valuable contribution, so that the queen of flowers creates her magnificent flower dress. This insider tip has been circulating among amateur gardeners for generations and has proven its worth in everyday practice. Although the natural material does not cover all the needs, it still provides indispensable potassium, phosphate and magnesium. Read here how banana peels are used correctly as fertilizer for roses. There are practical ideas for compost on top of that.
What distinguishes banana peels?
Banana peels are much more than just the natural coating of delicious pulp. While the shell forms during the growing season of the flower cup and the outer seed coat, there accumulate a wealth of valuable ingredients. Already in 1968, the United Nations' Food and Agriculture Organization (FAO) confirmed the high content of important nutrients in banana peels to underline their importance for use as animal feed. Based on these findings, their beneficial effect on the growth of roses and other flowers, since they also exactly according to the exposed nutrients require. The dominating ingredients at a glance:

  • Sodium: 0.1 g / kg
  • Phosphorus: 1.0 g / kg
  • Potassium: 42.0 g / kg
  • Iron: 60 mg / kg
These are the average values ​​that were last confirmed by the FAO in May 2016. In immature banana peels, this value is higher, while it degrades slightly during maturation. Thus, the proportion of minerals in a dessert banana is reduced from 13.2 percent to 12 percent of the dry matter.
Potential for rose fertilizer
With regard to the composition of high-quality organic rose fertilizers, it becomes apparent why banana peels are recommended as a fertilizer for roses. Most of the special fertilizers come in an NPK formulation of 7 + 7 + 10, enriched with trace elements such as iron and magnesium. While nitrogen (N) and phosphorus (P) are responsible for growth and flowering, potassium is responsible for strengthening plants. This task is of the highest relevance in the context of rose fertilization, as the royal edelrosen in particular suffer from soft shoots. Potassium increases cell-juice concentration, which improves the suction power of each cell. Their roses absorb rain and irrigation water better and do not evaporate the valuable moisture quickly when exposed to sunlight. Not only that, stinging and sucking pests, such as aphids, are difficult to get through the starched cell walls, so potassium acts as a natural prophylactic. In addition, a balanced potassium supply lowers the freezing point in the cell sap. The result is an optimized frost hardiness, so that your flower queen comes alive and well through the winter. Since banana peels are primarily rich in potassium, it is hardly surprising that they are excellent as a fertilizer for roses. How to do it right:
  • Dry banana peels on a grill
  • Cut with the knife
  • In each case in April, June and August each Rosenbusch 1 cup banana peels superficially incorporated into the soil
In addition, dried banana peels provide a rich mulching material for your roses. Cut the shells into small pieces, mix them under grass clippings, leaves or bark mulch and distribute the mixture in the bed of roses. While the mulch keeps the soil warm and moist for longer, busy soil organisms open up the potassium for the root of the roots, so that they can absorb the valuable nutrients. Use only bananas from certified, organic cultivation. The trays of commercial goods are heavily contaminated with pesticides that nobody wants to have in the hobby garden.
Tip: If roses develop brown to brown-purple leaf marguerite, the flower colors fade and the stems grow thinner and thinner, the flowers suffer from a lack of potassium. To ensure that the nutrients are quickly available to the suffering beauties, you can supplement the use of shredded banana peels with potassium-rich comfrey jelly, which is used in diluted form for pouring.
Ideas for compost
In view of the nutrient composition of banana peels, it is obvious that they can not act as the main actor in the context of rose fertilization. Although potassium is important for strong, resistant and hardy roses, nitrogen, phosphorus and other trace minerals should not be neglected. So how should banana peels be integrated into the compost to reach its full potential? The following ideas may serve your inspiration.
Compostable materials
In principle, all vegetable, degradable waste from the garden and kitchen can be used for composting.Suitable are krautige plants, like vegetables, flowers, herbs and perennials. In addition, fall foliage, seed weeds and whitewashed grass clippings are added. From the kitchen, vegetables, potato peels, coffee grounds and fruit move to the compost pile. The skins of untreated bananas and other tropical fruits also make an important contribution to a balanced composition. Crushed egg shells provide lime, while pure wood ash - in addition to banana peels - gives off indispensable potassium. Cardboard and kitchen paper are also eligible, as long as they are not printed. The dung of your domestic and small animals is also one of the compostable materials.
Tip: Unsuitable for the compost are plastic, glass, stones, metal or other contaminated material. The sides of a glossy prospectus just as little complement each other with banana peels as compost, like the roots of weeds.
Layer and transfer properly
So that a compost heap actually turns into the brown gold of the hobby gardener, it depends on a well-considered stratification. The following order has worked well in the private garden:
  • Ideal is a partially shaded, warm place in the shelter of a hedge or an elder
  • A wire mesh on the floor denies the entrance of voles
  • The lower 10-15 cm consisting of rough branches
  • The next shift is made up of garden and kitchen waste, including banana peels
  • The whole thing is sprinkled with algal lime or manure and a thin layer of garden soil
In dry weather, sprinkle the compost pile with water or diluted nettle and comfrey. Depending on the desired size, further layers of garden and kitchen waste follow, creating a mountain that tapers towards the top. Within the next 14-21 days, the temperature in the compost rises significantly, killing off microbes and pests. A cover with mats or oak leaves has a beneficial effect on the process. After this hot fermentation, invert the compost pile, aerating the material well. Once temperatures fall below 40 degrees Celsius, the soil organisms migrate to begin their beneficial work. For this reason, a compost should never lose contact with the ground.
This second phase lasts for 3-4 weeks while the material is processed by busy earthworms and other beneficial organisms. After the compost pile has been reacted once more, it rests for 3-4 months, with temperatures dropping to 20-25 degrees Celsius. Now you have nutritious mulch compost for your roses. It takes another half a year for the ideal rose fertilizer to develop.
Banana peels contain valuable nutrients that support the growth of your roses. In particular, a high proportion of potassium, strengthens the plant cells, so that the queen of flowers can better ward off frosty cold and sly pests. Do not throw away the bowls of organic bananas after eating, but dry and cut the material to fertilize your roses. A cup incorporated into the substrate in April, June and August naturally covers the potassium requirement. In combination with other kitchen and garden waste, banana peels serve as an indispensable potassium supplier in the compost pile to provide your roses with all the essential nutrients.

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