Fertilize roses: when, how and with what?

Roses enchant every garden with their blossoms - if they are properly fertilized. You can find out when, how and with what the best way to fertilize roses here.

So your rose (pink) develops true picture book flowers that would do Sleeping Beauty any credit, the delicate little plant has to expend a lot of energy. For this, the flowers of love need regular and sufficient nutrients, because the storage available in the soil is quickly used up by the heavy consumers. In order for you to be able to bring in a colorful profit, you have to invest a little love effort. Therefore, professional care of a rose includes the regular supply of a suitable fertilizer. You should also keep an eye on the ground under the rose. Its performance and care determine, among other things, how well the nutrient absorption takes place.

So that roses can come up with majestic flowers, the plant invests an enormous number of nutrients and assimilates from photosynthesis in its beguiling robe. The nutrient reserves in the pot as well as in the soil can be quickly exhausted. It is therefore up to you to regularly replenish the nutrient stores through fertilizer application. So that your roses don't just show off their prickly side, we will explain to you which fertilizer is best for roses and when to fertilize roses.

When is the best time to fertilize roses?

For a good start, a rose is supplied with nutrients for the first time when it is planted in autumn. Simply mix the excavation from the planting hole compost or ours Plantura organic rose fertilizer at. This initial fertilization will take effect next spring, when your garden – including plants and soil organisms – wakes up from hibernation. In the meantime, the freshly planted garden queen has already taken root a little. It only has to be fertilized again in June or July in order to be able to support the last flowers, the formation of the bright red rose hips and the preparation for the next winter.

Fertilize roses in the bed

Established existing plants in the bed are first fertilized in the spring between March and April. At this point in time, the rose is just budding with the strength of the past year: it has stored sugar (assimilates) and nutrients in the roots, stems and shoots. In order for the effort to be worthwhile, the nutrient supply should now also be optimal, because the reserves of the plant are of course limited. It is best to use a primarily organic long-term fertilizer such as our Plantura Organic rose fertilizer. This has a fast rate of action and an even and long nutrient release. The second - and usually last fertilization of the year - takes place in June or July. Again, you should choose an organic-mineral slow-release fertilizer. A sufficiently high potassium content is important here, because potassium is extremely important for the frost tolerance of plants. After this date, the introduction of nitrogen is taboo in order not to hinder the important end of the shoot - i.e. the woody growth in autumn.

Fertilize roses in the fall

In most cases, the second fertilizing appointment in June or July is sufficient to get your roses ready for the winter. Autumn fertilization is only recommended in very cold, unprotected locations potash fertilizer End of August. Potassium acts as a kind of antifreeze in the vacuole of the plant cells: like the salt in seawater To prevent freezing, potassium is stored in the cells to prevent them from forming large ice crystals be destroyed.

Summary: Fertilize roses in the bed

• Roses should be supplied with an organic long-term fertilizer when planted.
• Existing plants are fertilized twice a year: in March/April and in June/July.
• Roses in cold winter locations can benefit from additional potassium fertilization in late summer.

When to fertilize roses in pots?

potted roses outdoors, just like outdoor roses, you supply them with a slow-release fertilizer directly when planting. The fertilizer dates are for bed roses and potted roses are generally the same if an organic or organo-mineral fertilizer is used. Because despite the lower substrate volume, with organic fertilizer a large amount can be fertilized "in reserve" without over-fertilization occurring.

If you have one mineral fertilizer without long-term effects, monthly fertilizer applications are necessary between March and July. Potted roses that are indoors or that are wintered warm and bright can be fertilized until September. Of course, fertilizing with a long-term fertilizer is also possible in the pot. Provide your roses with this two to three times a year, like the specimens planted out.

Summary: when to fertilize roses in pots?

• Potted roses that overwinter outdoors are fertilized in the same way as outdoor roses.
• Indoor potted roses can be fertilized until September.

How and with what to fertilize roses?

If you want to be on the safe side and don't necessarily feel the urge to get involved intensively addressing the nutritional needs of your roses is best done with a special one rose fertilizer. This offers the prickly plants an ideal combination of nutrients. But you can get the best out of your roses even without special fertilizers. When choosing the fertilizer, you should make sure that the potassium content is higher than the nitrogen content. Because if the fertilizer is too nitrogenous, your rose will grow in no time, but the formation of flowers will fall short. In addition, roses need a relatively high proportion of phosphate in the fertilizer so that the flowers are in full bloom and as numerous as possible.

But not only the nutrients contained are important. The form of administration has a decisive influence on the effect of the fertilizer. You have the choice between mineral, organic, organo-mineral or organic fertilizers - that's what they are liquid fertilizer. Mineral liquid fertilizers and solid mineral fertilizers such as blue grain are actually hardly suitable for the supply of woody plants. The extremely fast and short-lived nutrient release results in bursty growth and roses prone to pests, frost and drought. As in many cases, you should also rely on an organic long-term fertilizer. This has the following advantages for you:

• Natural long-term effect and flowing release, which ensures equally natural and even plant growth.
• floor care, humus regeneration and thus increasing soil quality, which is quite significant for roses. In addition, entry of important trace nutrients.
• The production conserves resources and the application protects your garden, your pets and also your plants.

A uniform long-term effect is particularly important for woody plants. Our primarily organic Plantura organic rose fertilizer offers a natural long-term effect with a NPK ratio of 5-2-8.5 + 2 MgO. In this way, your noble plants are sustainably cared for in terms of time and ecology. In comparison to mineral fertilizers Valuable resources are already saved during production.

Make sure different varieties of roses also make different demands on the soil pH. While most strains prefer a pH of 6.5 to 7.5, others love a more acidic or even alkaline soil. Those who like it acidic do not tolerate fertilization with lime very well and chlorosis can develop very quickly. This is due to an iron deficiency, which is caused by a lower availability of iron in the soil on the one hand and the lack of an effective uptake strategy by the rose on the other. Those roses that love an alkaline soil pH have better iron uptake strategies and will reward lime application with better growth.

More information on the composition and mode of action of rose fertilizers can be found in our special article.

Fertilize roses correctly: Instructions for the ideal application

Just as people have to find the right balance when it comes to nutrition, the same applies to our photosynthetic darlings. So that your roses can grow into vital, magnificent specimens in a balanced nutrient environment, you should pay attention to the right fertilizer dosage. That's why we have a small guide for you on how to apply our Plantura correctly Organic rose fertilizer compiled:

1. The perfect time to fertilize is in the evening. Loosen the soil superficially so as not to destroy roots.
2. The right amount will then be ours Plantura organic rose fertilizer distributed around the rose. You can use a drinking glass to measure the correct amounts: 0.2 liters correspond to about 130 grams of fertilizer. Consider the spread of the root system: Nutrients can be absorbed above all with the finest branches of the roots – i.e. also at a distance from the rootstock.
3. Work in the fertilizer granules a little and then water extensively.
4. The correct fertilization times and dosages can be found in the table below.

time of fertilization	dosage recommendation
When replanting	100 – 150 grams/m2/per planting hole
Fertilization date 1 (March/April)	80 – 120 grams/m2 or 60 grams/plant
Fertilization date 2 (June/July)	80 – 120 grams/m2 or 60 grams/plant

Tip: ours Plantura organic rose fertilizer you can also mix it as a liquid fertilizer for a quick start in spring. So it is introduced directly with a lot of water, which is so important for the release of nutrients.

Fertilize roses with minerals: Blaukorn and Co.

Depending on their flowering behavior, roses need to invest a lot of energy in flowering either once a year or even over a long flowering period. The magnificent blossoms cost the plants a lot of energy. mineral fertilizers have the disadvantage that they act quickly, but not for long. For you as a user, this means that you must not forget to apply fertilizer or apply it at the wrong time - otherwise malnutrition or incorrect fertilization with fertilization damage can occur.

Too much nitrogen leads to increased vegetative growth - lots of foliage and little flowering can be the result. Not to mention the negative effects on winter hardiness, soil quality and soil life. They are better suited because of the lower risk of over-fertilization and more even supply organic fertilizers or organo-mineral fertilizers, preferably in organic quality.

Fertilize roses with home remedies such as coffee grounds and the like

The location of a rose with something tart to fertilize coffee grounds can for soil structure and humus content be beneficial. This is where quantity matters: adding four spoonfuls of dried coffee grounds to a rose twice a year is perfectly safe and will bring in a little extra nitrogen. For lime-tolerant or lime-loving varieties, finely ground eggshells or small amounts of cleaner wood ash as fertilizer be beneficial to achieve the right pH and at the same time fertilize calcium, phosphorus, potassium and magnesium. A little tip for a lush bloom are crushed banana peels. These are rich in phosphate compounds and potassium.

Why special rose fertilizer are useful, we have summarized them for you here.