From March to April every spring, it is the best time to plant marigold.
Marigold is sown in spring. Generally, it can sprout one week after sowing. When the seeded seedlings grow 5 to 7 leaves, about 10 cm, they can be transplanted or potted. Keep the soil moist, but not too much water, fully contact with the sun, and increase air circulation, so that marigold more ventilation.
During the growth of marigold, you can take heart many times. Promote the germination of new branches of marigold, can be more flowering.
Marigold likes a warm, humid and sunny environment. In the hot summer with strong sunshine, it can not be too shaded, which will cause the plants to grow in vain and lack of flowering. Because of the high temperature and evaporation in summer, marigold needs more water, so it should be watered frequently to keep the basin soil moist.
Summer is the main flowering period of marigold. Keeping the temperature slightly lower can prolong the flowering period. After the flower is decayed, cut off the remaining branches, strengthen the management of water and fertilizer, and can bloom again.
In summer, marigold can also be cutted.
The flowering of marigold can last for autumn, but when autumn cools down, the flowering of marigold will decrease. At this time, watering and fertilization should be reduced. Move to the enclosed balcony with light to prolong the flowering period. In autumn, the temperature will drop further. When the temperature drops below 10 ℃, the growth of marigold will slow down.
After the fall flower, with the temperature gradually reduced, marigold slowly began to stop growing. In the cold winter, when the temperature is lower than 5 ℃, marigold will slowly wither and wait for the next spring to germinate.
