Culture methods and matters needing attention of the latest potted Calendula

With short plants, dense flowers, bright colors and long flowering period, calendula is the most common herbaceous flower in early spring gardens and cities. Calendula colorful, is one of the common flowers and plants, potted planting used to decorate the home is not uncommon, the following for you to introduce the marigold breeding methods and matters needing attention.

[shading in spring, summer and autumn]

Calendula can not be exposed to strong light, spring, summer and autumn need to be shaded in time, if the temperature during the day exceeds 25 ℃, do not put directly in the sun, otherwise the leaves will obviously become smaller, the distance between the branches will shrink, the leaves at the bottom will gradually turn yellow and fall off, and the growth of the plant will gradually slow down and even infiltrate the semi-dormant state.

In winter, because the temperature is not high, it can give direct light and promote photosynthesis, which is conducive to the formation of flower buds, flowering and fruiting of calendula.

After the plant blossoms, the plant can be maintained indoors for 10 to 15 days, and then moved to the outdoor shade environment for one month, so alternate maintenance is conducive to the accumulation of plant nutrients and prolong the flowering period.

[to be warm, avoid extreme heat]

Calendula likes warm climate and is afraid of extreme heat. If the summer temperature is higher than 34 ℃, it will grow poorly.

Not resistant to frost and cold, the winter temperature below 4 ℃ will enter dormancy or even death.

The most suitable growth temperature of marigold is 15-25 ℃. In the maintenance of the whole year, attention should be paid to the control of temperature, timely opening of windows and cooling by spraying water to control the indoor temperature.

[heart-picking pruning]

Cut off the branches with old and yellow leaves every two months, as long as the temperature is right, it can blossom all the year round.

Coring is usually carried out twice before flowering to promote the germination of more flowering branches: one to two weeks after potting, or when the seedling is 6-10 cm tall and has more than six leaves, remove the tip and retain the lower 3-4 leaves to promote branching. After 3-5 weeks of the first coring, or when the lateral branch grows to 6-8 cm long, the second coring is performed, that is, the top tip of the lateral branch is removed and the 4 leaves under the lateral branch are retained. After two coring, the plant type will be more ideal and the number of flowering will be more.

[control humidity, spray water in time]

Calendula likes humid environment, control humidity at 75-85%, spray water in time to increase humidity during maintenance, 1-3 times a day, higher temperature in sunny days, appropriately increase the frequency of water spraying, lower temperature in cloudy and rainy days and reduce water spraying times appropriately. But excessive spray, heading is easy to be infected by bacteria and rot, so spray should also pay attention to the water quality.

[matters needing attention in marigold culture]

1. Pay attention to water control

Don't water too much during the growth period, just keep the soil moist. Spray in time when the temperature is high, increase air humidity.

2. Disease and pest control

The common diseases and insect pests of calendula are Fusarium wilt and downy mildew. Timely spraying Dysen zinc wettable powder 500 times solution to control. When the temperature rises gradually in early summer, leaf spot disease often occurs in calendula. 2000 times of Weiruling wettable powder is sprayed to prevent and cure it.