What are the precautions for growing Madagascar periwinkle?

Madagascar periwinkle germinates 14 to 21 days after sowing. The newly sprouted seedlings must not be exposed to strong light for long periods, and at midday when the temperature is high they need 2 to 3 hours of shade. When the seedlings reach 5 cm and have grown three pairs of true leaves, they can be potted; when they have grown 6 to 8 pairs of true leaves, they can be planted out. Plant them out in the flower bed in May and water once every 3 to 5 days, with appropriate fertilizing, to promote the growth of Madagascar periwinkle.

Key points and precautions for growing Madagascar periwinkle

Other names for Madagascar periwinkle: Sanwanhua, Sishichun, Yanlaihong, Wubanmei. Place of origin: originally from eastern Africa. Do you know its key growing points and precautions? Below, the editor of Huinong Network gives a detailed introduction:

1. Soil selection: For the potting soil, it is suitable to choose sandy soil that is loose in texture, good in air permeability, rich in humus and well drained, and to apply an appropriate amount of base fertilizer.

2. Cultivation: ① Generally sow in April in spring.

② After sowing, cover with a relatively thin layer of fine soil and keep the soil moist; it will sprout after 10 to 20 days.

③ When the seedlings have grown 3 to 4 true leaves, they can be transplanted into pots, with 3 plants per pot, to make survival and viewing easier.

④ After planting out, do not water too much.

⑤ After planting, the pot usually needs to be changed once every 2 years, preferably in spring.

3. Watering: ① Usually do not water the plant too much; keeping the potting soil moist or slightly dry is enough.

② In summer, when the temperature is higher and it is dry, the amount and frequency of watering can be moderately increased, but in the rainy season pay attention to draining away standing water.

③ In winter, after moving the plant indoors, control the amount and frequency of watering; the potting soil should preferably stay on the dry side, otherwise it is prone to cold damage.

4. Fertilizing: During the plant's growing season, apply fertilizer once every half month, with more nitrogen fertilizer. During the bud stage, add phosphorus fertilizer and potassium fertilizer, which can promote abundant flowering and make the flower colors pure and brilliant.

5. Temperature: Madagascar periwinkle likes warmth. The suitable growing temperature is 18 to 24°C from March to September, and 13 to 18°C from September to March of the following year. The suitable temperature for germination is 20 to 25°C. In winter, move it into a room to care for it, and the room temperature must not be below 10°C.

6. Light: During the growing season, the plant needs to receive enough sunlight, which can make the leaves emerald green and glossy and the flower colors vivid. In summer, when the sunlight is relatively strong, the plant can be moderately shaded, and it must not be placed in a shady place for a long time.

7. Propagation: Madagascar periwinkle is often propagated by sowing and by cuttings.

8. Pruning: When the seedlings grow to 7 to 8 cm tall, pinch them back once, and after that pinch them back 2 more times, to encourage them to produce more new branches and abundant flowers.

9. Pest and disease control: ① The diseases that commonly occur on Madagascar periwinkle are rust and leaf rot. Spraying with a 2000-fold dilution of 50% carboxin wettable powder can effectively prevent and treat rust, while spraying with a 500-fold dilution of 65% zineb wettable powder can treat leaf rot.

② The main insect pest of Madagascar periwinkle is damage by root-knot nematodes, which can be killed by spraying with a 50-fold dilution of 80% dichloropropane emulsifiable concentrate.

When is the best time to plant Madagascar periwinkle? Analysis of the best planting time for Madagascar periwinkle and precautions

    Madagascar periwinkle is a flower that combines ornamental value and medicinal value, and its beautiful flower form makes it much loved in daily life. So when is the best time to plant Madagascar periwinkle? Below, the editor gives a detailed analysis for everyone of the best planting time and planting precautions for Madagascar periwinkle.

    I. Suitable planting seasons

    In fact, the most suitable seasons for planting Madagascar periwinkle are spring and autumn. In spring, the planting time is from March to May, when the temperature generally stays at around 20 to 25 degrees. Autumn is from September to October, and it cannot be done earlier, because before September the temperature is too high, which is very unfavorable for the flower bud germination of Madagascar periwinkle.

    II. Spring and autumn

    In fact, Madagascar periwinkle is planted in spring and autumn, because the temperature and environment of these two seasons are more favorable for the root growth and sprouting of Madagascar periwinkle plants. This is because the temperature in these two seasons is not extreme, and Madagascar periwinkle will not be scorched by excessively high temperatures.

    III. Spring planting time

    When planting in spring, you can choose March to May, because the temperature at this time is between 20 and 25 degrees. But if you want the Madagascar periwinkle you grow to bloom earlier, you can sow earlier in a greenhouse.

    IV. Autumn planting time

    The second season is autumn. The specific time for autumn planting is between September and October. When planting in autumn, it is best not to plant earlier, because before September the temperature is very high, which is very unfavorable for the sprouting of Madagascar periwinkle.

    V. Precautions to note when planting

    After we sow Madagascar periwinkle, it will sprout tender shoots in about 2 to 3 weeks. At this time, it must not be exposed to direct sunlight. When it has grown three true leaves, it can be transplanted into pots, and later attention needs to be paid to watering, fertilizing and supplementing nutrients.

    The best planting time for Madagascar periwinkle is spring and autumn, but in order to improve the survival rate, everyone needs to pay attention to planting techniques when planting. The above is a detailed analysis of the best planting time for Madagascar periwinkle and precautions, and we hope it is helpful to all growers.