The culture method of blue chrysanthemum needs to control the temperature of tropical plants.

Sprouting: peel off the seed shell and soak it in water, then put it in a cool place to promote germination, and then sow seeds after dew. Sowing: the seeds are placed in a seedling pot and covered with a thin plastic film. Fertilization: after 2 pairs of true leaves, thinner water-soluble fertilizer can be applied once a week, and a small amount of nitrogen fertilizer can be applied 2 months later. Temperature: suitable for 20-25 ℃, too high or too low temperature will affect the germination rate. Moisture: timely watering. Light: shade is needed in summer. Pruning: pruning excess branches.

What is blue eye chrysanthemum?

Blue eye chrysanthemum, also known as African daisy, big flower blue eye chrysanthemum, they are native to South Africa, like to live in areas with plenty of light and cool, and are not resistant to cold or heat.

Its plant is medium, the flower is solitary, is tongue-shaped, the disk is blue-purple, and the flower language is silent.

Culture methods of Chrysanthemum morifolium

1. Sprout. Peel off the seed shell of the blue chrysanthemum and soak it in water, spray the paper towel on a small plate, moisturize it with a plastic bag, and then put it in a cool place for germination. After the seeds are exposed, they can be sown.

2. Sowing seeds. Mix peat and perlite in a certain proportion and put it into the seedling basin, make a small hole in the seedling basin, then put the seeds in, cover with a layer of fine soil and vermiculite, moisturize with spray water, and then cover the basin with a thin plastic film. After the seeds germinate, remove the mulch in time, and tear off the membrane after 60-70% of the cotyledons are unfolded, but ensure the humidity of the substrate to ensure that the germinated seeds protrude smoothly from the seed shell.

3. Fertilization. After growing 2 pairs of true leaves, the seedlings can apply thinner water-soluble fertilizer once a week, and gradually increase the fertilizer concentration with the continuous growth of the seedlings. Two months after emergence, a small amount of nitrogen fertilizer began, then gradually changed to phosphorus and potassium fertilizer, continued to apply phosphate fertilizer after budding, reduced fertilization or stopped fertilization after flowering.

4. Temperature. Blue-eye chrysanthemum is a tropical plant, the best planting temperature is 20-25 ℃, too high or too low temperature will reduce the germination rate of blue-eye chrysanthemum seeds. In winter, the indoor temperature should be controlled above 12 ℃. If the temperature is lower than 5 ℃, cover the blue chrysanthemum with a plastic bag and stick the plastic bag into it, leaving a few small holes above for ventilation.

5. Moisture. It is necessary to water at the right time after sowing, and when the soil temperature is low at night in winter, the water loss is less, so there can be no watering or less watering at the seedling stage, and if the soil temperature is high, spray water should be used timely; when raising seedlings in summer, water evaporates quickly and more water should be sprayed; blue chrysanthemum generally takes only 3 months from sowing to flowering, and there is a large demand for water in full bloom, and the soil surface should be watered when the soil surface is dry. When watering the blue chrysanthemum, the hydraulic power should not be too large, so as not to damage the soil surface of the blue chrysanthemum and affect its root growth.

6. Light. Blue chrysanthemum is not heat-resistant, most seeds should have enough light when they germinate, shade them in summer, and leave them outside to receive light in other seasons to avoid excessive growth of seedlings.

7. Pruning. Before winter, trim off the excess branches of the blue chrysanthemum plant to prevent excessive nutrient consumption and vegetative growth.

8. Pest control. In winter, the diseased leaves of blue chrysanthemum plants were destroyed or sprayed with medicine solution to prevent the disease source from harming the plant again in the coming year.