How to raise geraniums

I. Culture environment

1. Soil: geraniums do not have high requirements for soil, but they like sandy loam rich in humus best.

2. Watering: it is necessary to water appropriately, the spring and autumn season is the peak period of growth, so it is necessary to ensure sufficient moisture, but there can be no stagnant water; it is best not to water when the weather is bad; do not water during the rainy season, and should take drainage measures, and put it in a ventilated place; water less in winter, if the temperature is high, you can water more.

3. Fertilization: fertilizing every 10-15 days in the growing season, and applying liquid fertilizer every 7-10 days in spring and autumn; if the temperature is high in winter, it is best not to apply fertilizer when the temperature is high in summer, and it is best not to apply fertilizer when the temperature is high in summer; nitrogen fertilizer is applied before the emergence of flower buds, and then mainly by phosphorus and potassium fertilizer.

4. Light: sufficient sunshine is conducive to its better growth, but it should be shaded for a period of time in hot summer, and can be placed directly in the sun in spring, autumn and winter; when there is not enough light, it will affect its flowering. Avoid being exposed to strong light when blooming.

II. Methods of reproduction

1. Sowing and reproduction: after the seeds are collected, you can sow the seeds. If you want to sow the seeds when the weather is cool, you can first dry and store the seeds. When the temperature is 20 ℃, they will germinate in about 7-10 days.

2. Cutting propagation: it is best to cut in spring and autumn, choose healthy cuttings, then dry them with indolebutyric acid for about 5 seconds, wait until it wilts and then cut, pour water to avoid being exposed to strong light, and take root after 2-3 weeks.

III. Common diseases and insect pests

Common diseases and insect pests are mosaic disease, root rot, small feather moth, caterpillar, white mosquito and so on. If you want to prevent mosaic disease and kill aphids, it is important to remove parasitic plants nearby. Small feather moth can be sprayed with trichlorfon.