Roses like a cool, sunny environment, and they need at least 6 hours of sunshine every day to produce good quality flowers. Its growth temperature is 15-25℃, which is too high for the growth of roses. Besides, good ventilation is also important. ?
A soil:?
The soil suitable for rose growth must be loose, well ventilated and well drained. Potted soil can be made of sandy loam, snake sawdust and vermiculite, while roses cultivated in the open field must be planted where there is no water, and the soil should be turned loose before planting.
Water should be controlled during the flowering of roses. This is the secret of good flowers. Because when the petals are unfolded, if you water them too much, the roses will absorb too much fertilizer and nutrients, and the flowers will not bloom well. If it is ordinary soil, even if the topsoil is dry, it can keep enough water during flowering. ?
Application of fertilizer:
Roses like fertilizer, so organic fertilizer should be added as base fertilizer when planting, and oil meal, bone meal or decomposed fertilizer can be used, and the dosage is 1/4- 1/5 of the soil. After that, topdressing once every half month, weeding can be combined with fertilization, and the soil is slightly loose, which will make the roses grow better. Bury the fertilizer in the soil in the winter when the roses are dormant. Fertilizer applied in summer is half of that in winter. Because roses are in the period of growth and development, don't dig holes as deep as those dug in winter, but scatter them sparsely on the soil surface and mix well with the surrounding soil. If you dig a deep pit, it may damage the root system that absorbs water and nutrients, so pay attention. ?
Three flowering management:
In order to make the roses bloom big and many, usually the buds germinated when the flower seedlings are young should be picked as soon as possible, and the flower seedlings will grow for about half a year before flowering. If you want to get bigger flowers, only keep the main buds in each branch and pick the side buds as soon as possible. On the contrary, if there are many lateral buds, there are more flowers but each flower is smaller. In flowering period, applying liquid fertilizer of grass flowers once every 10 day can prolong flowering period.