Habit: marigold has a strong vitality. Even if the leaves are frozen stiff and curly at a low temperature of-5℃, they can quickly return to their original state without affecting their growth and flowering. Flowers are yellow and orange, and they can bloom for eight or nine months a year, even in the dead of winter.
The planting method of marigold can be sowing in spring and autumn, selecting seeds with full grains, soaking in warm water to promote water absorption, drying in the sun, sterilizing the seeds, sowing in the soil, and transplanting when the seedlings grow to more than three true leaves. It can also be planted by cutting. Cut the cuttings in spring and cut into the substrate to promote rooting. After rooting is stable, transplant and plant.
First, sowing and planting
1, time: marigold can be planted in spring and autumn, usually in the middle and late September.
2. Seeds: Choose good seeds, choose seeds with full grains, and soak them in warm water for about 3- 10 hour to promote the water absorption and expansion of seeds, which is beneficial to germination. After soaking in water, the seeds are dried and disinfected.
3. Sowing: prepare a loose and breathable substrate, sterilize the substrate, and remove germs and eggs in the substrate. Sow the seeds, then soak them in water to replenish water. You can cover them with film to keep them warm and moist. After the seedlings are unearthed, uncover the film in time to promote the seedlings to see the light and pull out the seedlings with poor growth.
4. Planting: When the seedlings grow more than three true leaves, they can be transplanted and planted in pot soil.
Second, cutting planting.
1, time: marigold marigold cutting is usually in spring, and the temperature is about 18-25℃, which is beneficial to the survival of cutting.
2. Cutting: Choose a well-growing marigold plant, and cut thick, pest-free and well-growing branches from it as cutting.
3. Cutting: prepare a substrate with good air permeability, cut the cuttings into the substrate, pay attention to maintenance and promote rooting.
4. Planting: After the marigold cuttings take root stably, suitable pot soil can be prepared and the rooted seedlings can be transplanted and planted.