How to grow potted nasturtium? Cultivation methods and pest and disease control

Nasturtium is also a potted flower that people like to propagate. The golden-yellow flowers look so elegant, but how can potted cultivation be improved? Below, the editor introduces the cultivation methods and pest control for potted nasturtium. I hope everyone likes it.

Cultivation methods for potted nasturtium

Potted nasturtium needs loose, fertile, highly permeable soil for cultivation.

Nasturtium is usually sown and propagated. For annual planting, it can be planted in Yangshuo in early spring, planted 1 week after planting, when the seedlings are 10 cm tall. It can be planted in open, loose areas of soil. Generally, from June to September, nasturtium blooms continuously until frost falls.

If you need potted plants to bloom from April to May, you can plant them in a greenhouse in December of the first year. After sowing, pour water before placing them in a greenhouse at 20°C or higher. Seedlings will appear in about 10 days; keep enough light. When the plant height is 10 cm, cultivate the soil with fertilizer, using 50 g of broken hooves as base fertilizer, and repot into a double-cylinder pot;

If you need flowers for New Year's Day or the Lunar New Year, you can cut 10 cm long branches and cuttings in August, and use ordinary sand in a shallow pot to create a cool, ventilated and humid environment. After 15 days, they will survive. In October, the first gas cylinder will be placed at the front of the greenhouse. The daytime room temperature is about 15°C, and the nighttime temperature is about 10°C. Light should be sufficient, and the temperature should not be too high to prevent leggy growth. When repotting, pour water once, then replenish water when the soil becomes loose. Keep the soil moist and stop. Do not let water accumulate for a long time. Fertilizer solution and organic fertilizer water are used alternately once every 10 days;

Potted nasturtium that needs to bloom from September to October in autumn can be planted in early June. In the hot summer, it must be placed in a shaded, ventilated and cool environment. In autumn it will flourish, and the flowers will bloom abundantly.

Disease control methods for nasturtium

Leaf spot disease of nasturtium

Symptoms and patterns

The leaf spot pathogen overwinters in diseased bodies or later on the surface layer, and the host is infected by wind and rain during the beginning of the leap year. Continuous cropping, excessive dense planting, poor ventilation and excessive humidity all favor this disease.

Prevention methods

1. Remove diseased tissue promptly and burn it densely.

2. During usual maintenance, attention should be paid to ventilation, sterilization and disinfection, and timely drainage to prevent root rot.

3. Spray from the early stage of the disease to prevent the spread of the disease. Commonly used chemicals are 50% thiophanate-methyl 1000 times, 70% mancozeb 500 times, 80% mancozeb 400-600 times, 50% captan 400 times. Attention must be paid to alternating the use of chemicals to prevent bacteria from developing resistance.

Fusarium wilt of nasturtium

Symptoms and patterns

The vascular bundles of affected plants are infected, and symptoms usually appear at the adult stage. In the initial stage, leaves become dehydrated, or yellow patches, net-like faded spots, etc. appear; in severely diseased plants, the leaves fall one after another, and eventually the whole plant dies. The bacteria can survive the winter in soil, diseased bodies or fertilizer, and can survive for many years.

Prevention methods

1. Seed disinfection: before sowing, soak the seeds in warm water at 56°C for 5 minutes.

2. 50% thiophanate-methyl wettable powder 500 times spray can be used for prevention and treatment.

3. During usual planting, attention should be paid to ventilation and air exchange, sterilization and disinfection, to avoid the appearance of attached bacteria.

Common pests of nasturtium

Pests

Mainly include white-shelled noctuid moths, pink butterflies, whiteflies, red spiders, dragonflies, golden beetles, etc.

Prevention methods

Apply imidacloprid, chlorpyrifos, insecticides and other pollution-free pesticides in time to prevent nasturtium growth.

Protect the natural enemies of various plants, and use the mutual restraint between species for prevention and control.

Ornamental value of nasturtium

Nasturtium is a very good ornamental plant. It can be planted in garden rockeries and create an environment to decorate the surroundings. It can also promote urban greening. It is also a good choice for growing at home. If there is a courtyard at home, it can be planted in a flowerbed or beside a tree. After climbing, it will look very beautiful when it grows. It can also be potted and placed on a coffee table or desk at home, and it can also play a very good decorative role, or you can make a hanging basket, with green leaves and flowers hanging down, and it will look very beautiful.