Rosa is the general name of some plants of Rosa, which mainly refers to varieties of Rosa and horticultural varieties. Most of them are small flowers climbing fences like vines, and they are deciduous shrubs originating in China, with strong variability. Stem spines are large and generally have hooks, saving 3 or 4 each; Leaves alternate, odd pinnate compound leaves, 5-9 leaflets, serrated leaves, flat but pilose leaves. Flowers are usually 6-7 families, conical corymbose inflorescences, born at the top of branches, with a flower diameter of about 3 cm, and only bloom once a year. Rosa multiflora plate surrounds the mouth of calyx tube and has many colors such as white and yellow. Sepals will fall off after withering; Fruit is spherical.
cultivation techniques
There are many similarities between rose cultivation and rose cultivation, but it is more extensive than rose management. Planting spacing should not be less than 2 meters.
water
Roses like to moisten, but they are afraid of dampness and avoid waterlogging, so whether they are planted in the ground or potted, they must ensure a good drainage system. From germination to early spring flowering, water 3-4 times according to weather conditions to keep the soil moist. If the drought at this time will greatly reduce the number of flowers, then the summer drought will be watered 2-3 times. Pay attention to timely drainage and flood control in rainy season. Because roses are afraid of waterlogging, waterlogging is easy to rot their roots. Water it properly for 2-3 times in autumn. Be careful not to accumulate water in the roots of plants when watering all year round. The application of 1-2 times pancake fertilizer and water in bud pregnancy has good color and lasting flowering period.
Fertilize soil or land
Rose likes fat, and constantly supplements various nutrients according to the principle of "lean fat and diligent application". The longer plants grow, the more flowers they bloom, and the more nutrients they need. Every winter, it is necessary to fertilize the soil 1 time to keep the shoots and buds lush and beautiful. Due to the large amount of cut flowers, high-quality seed fertilizer 1-2 times a week should be applied in the flower season, and attention should be paid to cultivating the mother branches and cutting off the buds on the weak branches.
illuminate
Roses are masculine flowers, like warmth, and can safely overwinter outdoors in North China and its south. Roses should be properly shaded in summer to avoid sun exposure; Loosening the soil for ventilation and keeping the ventilation unobstructed; Spray water on leaves to increase air humidity.
decrease
Pruning is an indispensable and important process in rose landscaping. If it is not trimmed properly, it will grow into a pile of thorns and be uneven, which will not only cause many pests and diseases, but also be unsightly. Generally speaking, adult plants are pruned once a year in spring before germination. The pruning amount should be moderate. Generally, the main branches (main vines) can be kept within 1.5 meters, and the rest can be cut off. It is enough to leave 3-5 buds at the base of each lateral branch. At the same time, thinning dead branches, weak branches, pests and diseases, cutting off branches that are too old and too dense, promoting the germination of new branches and constantly updating old plants can flourish every year. Cultivate potted flowers and pay more attention to pruning and shaping.