How to fertilize roses? Master the right method for more vigorous blooms

We are all familiar with roses; they are flowers that symbolize love and have always been deeply loved by people. Roses are fertilizer-loving plants with extremely developed root systems and very fast growth. To achieve high yields, fertilization is an important task. So how should roses be fertilized when planting? Let's take a look at the detailed introduction below.

1. Fertilizer requirements

During growth, roses need large amounts of different types of fertilizer, among which nitrogen, phosphorus and potassium fertilizers are the most important. Nitrogen fertilizer is an important nutrient for roses; with sufficient nitrogen fertilizer, rose plants can grow with lush branches and leaves, while with insufficient nitrogen fertilizer, roses grow thin and weak with yellowed leaves. However, if nitrogen fertilizer is excessive, the plants will grow leggy, causing deformed flower growth and affecting yield. Phosphorus fertilizer can promote the growth of rose roots; with sufficient phosphorus fertilizer, rose plant leaves are thick and flowers are brightly colored, while with insufficient phosphorus fertilizer, branches are weak and flowers show a drooping symptom; potassium fertilizer can promote normal growth of new shoots and young leaves of roses, increase the number of blooms, and help increase yield.

However, the demand for these three fertilizers differs at each growth stage. In the early growth stage, the ratio of nitrogen, phosphorus and potassium is 3:1:2, while at the flowering stage it becomes 3:1:3. In addition to these three main elements, roses also need trace elements such as calcium, magnesium, zinc and boron, which should be added during planting.

2. Apply sufficient base fertilizer

When planting, sufficient base fertilizer is generally applied to the field in combination with land preparation. The base fertilizer is generally mainly organic fertilizer, supplemented by compound fertilizer, so as to provide sustained fertility for rose growth and also meet the plant's demand for trace elements. Generally, 3000-4000 kg of fully decomposed organic fertilizer is applied per mu, combined with 30-40 kg of high-concentration compound fertilizer. The base fertilizer is best applied after leaf fall in autumn, and as early as possible; it is generally applied in furrows, which can enable the roots to sprout new roots and grow vigorously after the beginning of spring the following year. If the base fertilizer is applied too late, it is unfavorable to the normal growth of the plants.

3. Timely topdressing

In addition to applying sufficient base fertilizer, roses have a great demand for fertility during certain growth periods, requiring timely topdressing with quick-acting fertilizer to provide for the plant's growth needs. Generally, topdressing is done 3-4 times a year.

The first is at the budding stage, when temperatures rise and the underground root system begins to grow and develop. At this time, compound fertilizer should be applied to promote rapid growth of branches and leaves;

The second is at the flower bud stage, which is the period of flower bud formation, when buds sprout and leaves unfold, root growth reaches its peak, and the fertilizer demand is very large, so fertilizer should be applied in time;

The third is at the full flowering stage, which is the critical period for roses, related to the level of yield and the quality of the flowers, but the plant's nutrients cannot meet its growth needs, so quick-acting fertilizer should be applied in time;

The fourth is after flowering, when branches and leaves stop growing and the flowers have matured and been harvested, while the plant's photosynthesis is still ongoing and a large amount of nutrients accumulates in the root system. At this time, whether to topdress can be decided according to the plant's condition.

The above is an introduction to how to fertilize roses. We hope it can help you. To learn more about flower growing knowledge, please follow us.