1、 Breeding environment

1. Soil: it is best to cultivate Impatiens in fertile and well drained soil

2. Watering: it is necessary to ensure that the basin soil is slightly wet, and the amount of watering should not be too much or too little. When the temperature is high in summer, water can be poured 1-2 times a day. There should be no ponding in the basin soil. If there are many rainy seasons, drainage measures should be taken in time to avoid ponding leading to root rot

3. Light: at least 4 hours of sunlight every day, but shade properly when the temperature is high in summer. Do not accept too strong light for a long time to avoid sunburn

4. Temperature: the temperature suitable for the growth of Impatiens is 6-26 ℃. It is best to keep the temperature above 10 ℃ during flowering. When the temperature is low in winter, take warm measures to avoid frostbite

2、 Breeding method

Sowing method: the sowing time can be from March to September, and April is the most appropriate time. Before sowing, the soil should be soaked first. After sowing the seeds, the thin soil with a thickness of about 3mm should be screened. Generally, it can germinate about 12 days after sowing

3、 Common diseases and insect pests

1. Powdery mildew: it usually occurs in June. White powder layer will appear on the leaf surface to form yellow spots, and finally turn black brown. It will generally appear on the leaves or tender spots. After finding it, remove the diseased leaves in time, and then spray with chemicals

2. Brown spot: leaf spot usually appears on the leaves, which will become yellow or even die. After discovery, the dew should be removed in time, the diseased leaves should be removed in time, and effective chemical control should be done