Content
- Fertilize strong-consuming climbing roses properly
- The right time for fertilization
- Prefer organic fertilizers
- Buckthorns prefer slow-release fertilizer
- Final fertilization with Patentkali helps to improve winter hardiness
- Tips
A regular fertilizer supply provides the climbing rose with the necessary nutrients
Fertilize strong-consuming climbing roses properly
Climbing roses are one of the heavyweights and need a good and sufficient supply of nutrients to grow healthy and to develop numerous flowers. Freshly planted specimens are only supplied with some compost, which is mixed with the excavation. Fertilization should be avoided. The supply of climbing roses already established at their location depends mainly on the nutrient content of the soil - an over-fertilization is to be avoided, since this weakens the plants and makes them more susceptible to fungal diseases as well as a pest infestation.
The right time for fertilization
Climbing roses should be fertilized three times a year:
However, the times mentioned are only for planted specimens, potted roses should instead be supplied in spring with a slow release fertilizer and during the growing season with a liquid fertilizer, since the substrate in the pot naturally contains too little or no nutrients and the plant thus on a supply from the outside instructed.
Prefer organic fertilizers
Climbing roses should preferably be supplied with organic or organic-mineral fertilizer. Very well suited, in addition to special, commercially available, Roünger, especially pure cattle manure. This has the advantage that it is decomposed only slowly and so does not give off the nutrients all at once, but continuously in smaller doses over a longer period of time. By contrast, purely mineral fertilizers (such as the so-called "blue grain") are not suitable for rejuvenation because they contain too much nitrogen. High nitrogen fertilization weakens the climbing roses and makes them more susceptible to disease.
Buckthorns prefer slow-release fertilizer
Climbing roses in the bucket need a basic fertilization with a long-term fertilizer. In freshly potted specimens, an addition is usually not necessary because many commercial Rosenerden are pre-fertilized. Only container roses, which have been in the same plant container for more than a year, should be supplied with such a long-term fertilizer in the spring.During the flowering period, a weekly fertilization with an organic liquid fertilizer is recommended.
Final fertilization with Patentkali helps to improve winter hardiness
Already from about the beginning of July - after the second fertilizer application - climbing roses should no longer be artificially supplied with nutrients (exception: potted roses), otherwise the shoots will continue to grow too long and can not mature in time before the first frost. To support the maturity and thus the frost resistance you should fertilize your climbing roses between the beginning and the middle of August with patent potassium. After this fertilization, the roses are vigorously watered so that the potassium reaches the roots.
Tips
If the rose petals are strikingly light, pale and lack the otherwise typical, rich green color, iron deficiency, a so-called chlorosis, is often responsible. A liquid egg remedy helps.