1、 Breeding environment

1. Soil: Lavender likes sandy soil with good drainage, and it is best to choose slightly alkaline or neutral soil

2. Watering: wait until the soil becomes dry before watering. The watering must be thorough. It's best to choose when there is no sunshine in the morning, otherwise the water will rot and breed pests when splashed on the leaves

3. Light: it likes plenty of sunshine, preferably all day. If it is in summer, it is necessary to take shading measures, appropriately strengthen ventilation, or spray water around it to reduce the temperature in the air

4. Fertilization: when applying fertilizer, dilute it with water to avoid burning its roots due to too thick fertilizer. Do not apply too much fertilizer. If it is too much, it will cover its own aroma. Bone meal can be used as base fertilizer

2、 Breeding method

1. Cutting propagation: select strong and insect-free branches for cutting, remove the leaves at the bottom of the branches, soak them with rooting agent, and insert them into the prepared soil for about half a month

2. Sowing and propagation: select the seeds with uniform size and full cut, soak them in warm water for about one day and concentrated sulfuric acid for about 5 minutes, then wash them with water and dry them for sowing. The temperature suitable for seed germination is 20-25 ℃

3、 Common diseases and insect pests

1. Starscream: the presence of red paper will make the leaves dry, yellow and withered. After discovery, the management of water and fertilizer should be strengthened. In the initial stage, it can be sprayed with 1000 times of 0.26% matrine, and in serious cases, it can be sprayed with 1000 ~ 2000 times of 20% dicofol emulsion

2. Root rot: if you want to prevent it, you should choose the soil with good drainage and pay attention to the pruning of diseased branches and old branches. You can spray 400 times of 70% methyl tobuzin wettable powder or 500 times of 50% carbendazim wettable powder on the leaf surface