When is the best time to plant Roselle?

The dried calyx of Roselle has a unique purple-red to black appearance, and the tea becomes brightly colored after being soaked in water. The flowers are yellow with a dark red base inside, and each plant can have 50 to 300 flowers. The sepals are cup-shaped, consisting of 5 inner sepals and 8 to 12 epicalyx bracteoles, fleshy and sour. Because Roselle has extremely high health value, many people are planting it now. Let’s learn together when is the best time to plant Roselle?

When is the best time to plant Roselle?

Before sowing Roselle, soak the seeds in water for about 12 hours to promote seed germination. The suitable time for sowing is generally from mid-to-late April to early May. When sowing, 3 to 4 seeds should be placed in each planting point. If you choose to cultivate by transplanting seedlings, then when the seedlings grow to a height of about 15 cm, they should be transplanted in time to ensure that the seedlings can grow healthily.

Roselle planting conditions

Seed treatment: Before sowing, it is recommended to soak the seeds in water for about 12 hours to promote germination. Choose seeds with full grains and uniform size to increase the germination rate.

Soil requirements: Roselle is highly adaptable to soil, but it is best to choose loose and breathable soil. You can add river sand to the garden soil to improve its aeration. The most suitable soil pH value is between 6 and 8.

Sowing method: When sowing, sprinkle the soaked and germinated seeds on the soil, cover with a thin layer of soil, and water thoroughly. Keep the environment warm and ventilated, and seedlings will generally emerge within one or two weeks.

Transplanting: When the Roselle seedlings grow to 10 to 15 cm in height, they can be transplanted. When transplanting, choose a larger pot or plot and make sure the soil has a certain degree of fertility.

Water management: Roselle likes a humid environment and should be watered in time during the growth period, especially in the dry season, to keep the soil moist.

Fertilization: Appropriate nitrogen fertilizer can be applied during the seedling stage, and phosphorus and potassium fertilizers can be added after budding to promote healthy growth and increase yield.

Pest and disease control: Pay attention to the prevention and control of common diseases such as wilt and root rot, as well as pests such as cabbage loopers and small bridge borers, and use pesticides for prevention and control in a timely manner.

Light: Roselle is a photophilous plant and requires plenty of sunlight to promote healthy growth and calyx coloring.

Temperature: Roselle grows well in a temperature range of 25°C to 30°C, and the optimum temperature for seed germination is 20-25°C.

Continuous cropping: It is recommended to crop the same piece of land for two years, after which crop rotation should be carried out to reduce the occurrence of diseases.

To sum up, Roselle is not only loved by people for its unique appearance and edible value, but also plays an important role in medicine, economy and ecology. Friends who want to grow Roselle can learn some relevant knowledge in advance.