First, the growth habits of calendula
The suitable temperature for the growth of calendula is 7-20 degrees, the seedlings can withstand the low temperature below 9 degrees in winter, and 0 degrees is generally better for adult planting. Calendula marigold is cold-resistant, afraid of heat, and likes sunny environment, especially in the open field or greenhouse in winter, which is very beneficial to the growth of its stems and leaves.
Second, the management of marigold planting
1, soil
Calendula has strong adaptability and low requirements for soil. Even in saline-alkali land, it can grow well. However, although marigold can tolerate barren land, it still requires high soil permeability. Therefore, it is suggested that marine microbial agents should be added to activate the soil according to the humidity of the conservation environment when mixing the soil to ensure the permeability and water permeability of the soil.
2. Temperature
Calendula doesn't require much for the environment. Adapt to all kinds of environments, especially cool and humid environments, and don't like the environment with too high temperature. In addition, calendula has good cold resistance. As long as the curing temperature is not lower than 5 degrees, marigold can produce large golden flowers, which are very beautiful.
3. Lighting equipment
Calendula likes plenty of light environment, and has a great demand for light. In addition to summer, it is also necessary to ensure that marigold can receive all-day light, which can help plants grow rapidly and the ornamental value of leaves and flowers will be higher.
Step 4: Moisture
Although marigold likes moist growth environment, it is afraid of stagnant water, which may easily lead to root rot. Therefore, it is suggested that planting friends should put them in a well-ventilated environment when they are maintaining and planting, which can help their roots to absorb better, and it is not easy to accumulate water and rot roots, so they will naturally thrive.