① time: it is better to plant from September to October in autumn.
② soil: loam, rotten leaf soil and river sand are mixed in equal amount.
③ temperature: 18-20 ℃.
1. Pretreatment: before sowing, soak the seeds in cold water for one day or two to three hours in warm water of about 30 ℃, and then seeds can be seeded after germination.
2. Planting steps:
① sowing: first select a shallow basin or box with a small hole at the bottom, sow the seeds in the container at a distance of 1.5-2CM, and then lay a layer of 0.5-1cm thin soil.
② water absorption: place the flowerpot on the tray, add water to the tray, and cover the top of the container with a glass cover after soaking in the water by this way of sitting on the tray.
③ germination: after germination for about 30-40 days, remove the glass cover in time, and place the plant in a sunny and ventilated environment.
④ transplanting: after 10-11 weeks, transfer the small plants to the soil with good air permeability, so that the root system is just covered by the soil, the small bulbs are exposed, and appropriate nitrogen fertilizer is applied.
The soil should be kept moist, but the roots should not accumulate water.
