Management methods for potted roses in summer
Core content of this article: planting contents of roses, management methods of potted roses in summer, please see the detailed introduction below.
After the blooming period of potted roses, they enter the hot and humid summer and are mostly in a dormant or semi-dormant state. Strengthening the management of potted roses in summer and carrying out rejuvenation care can break the dormant period and make them bloom continuously throughout the summer. The main management measures are:
1) Shading and ventilation
The soil of potted roses is limited, and it is easy to get hot and dry in high temperatures, so it is necessary to shade and cool the roses. It is best to place the pots in a ventilated area under trees or棚架 in the courtyard from 8 a.m. to 4 p.m., allowing the plants to receive scattered light and create suitable conditions for growth and blooming.
2) More fertilization and watering
Roses bloom multiple times and require sufficient nutrients and water to ensure vigorous growth. In summer, the evaporation and consumption are high, and the growth is rapid. During the blooming period, apply a light fertilizer every 10 days. Soybean cake and poultry manure can be soaked in water, fermented in a sealed container, and then mixed with water as a top-dressing to make the plants flower profusely and break the summer dormancy of roses. Watering should use water that has been exposed to the sun to reduce the temperature difference between the potting soil and the water. Using too cold water can stimulate the roots and affect the normal development of the plant.
3) More spraying
Roses are in a semi-dormant state at temperatures above 33℃, and it is most conducive to growth at an average temperature of 20-25℃. Therefore, in addition to proper shading in summer, it is also necessary to spray more water, preferably once in the morning and once in the afternoon, to create a humid environment and promote the growth of flowers and leaves.
4) Pruning branches
After the roses bloom, the third compound leaf below the flower should be cut to promote strong new branches and early bud formation. Weak and short branches should be cut first and higher, while strong branches should be cut later and shorter to promote weak branches and inhibit strong ones, making the blooming uniform. The pruning length of long branches should not exceed half to avoid slow germination of axillary buds. In addition, it is not advisable to retain too many flowers; 3-5 flowers are suitable for potted roses. Too many flowers can cause the nutrients to be too scattered, resulting in small flowers and affecting the next batch of flowers.
5) Loosening soil and weeding
While removing weeds from the pot surface, a fine wire rake can be used to gently break the top layer of soil around the pot to enhance the loose and ventilated performance of the potting soil and promote normal root growth.
6) Preventing and controlling diseases and pests
The area where the flower pots are placed should be regularly sprayed with a 15% lime water solution or a fungicide such as carbendazim or potassium permanganate solution to kill germs. From July to August, the hot rainy season is the high-incidence period of leaf spot and powdery mildew, which can be controlled by spraying a Bordeaux mixture of 0.3-0.5 degrees every week for a total of 2-3 times. If larvae of longicorn beetles are found from June to July, the branches should be cut immediately. Other leaf-eating pests should be sprayed with an insecticide at a concentration of 800 times as soon as they are discovered, which can kill eggs and larvae.
The above () introduces the specific content of the management methods for potted roses in summer. If it can be helpful to you, remember to visit the website often!