1、 Sowing time

Sowing method is a common breeding method of Primula. Sowing time is very important and has a great impact on seed germination. Generally speaking, the selection of time mainly considers the temperature, and sowing can only be carried out when the temperature is appropriate. Sowing is common in May, June and September. At this time, the temperature meets the requirements of its germination and can provide it with conditions for natural germination

2、 Other precautions

If you want seeds to germinate smoothly, it is not enough to consider only time. There are the following precautions:

1. Seed storage: after the seeds are collected, it is best to sow them immediately. If you don't want to sow immediately, you need to store it in a low temperature and dry place. The seeds to be sown should be larger

2. Substrate and flowerpot: loose and easily drained soil should be selected, preferably fine soil. You can mix rotten leaf soil and garden soil, but choose the slightly finer part. When sowing, the seeds should be mixed into fine sand and then sprinkled into the substrate. You'd better choose a lighter flowerpot

3. Management after sowing: after sowing, water first. The "pot immersion method" can be adopted to put the flowerpot into the basin with water and let the water slowly penetrate into the flowerpot. Wait until the substrate on the surface is wet before taking it out. Put it in a semi shady place. After about a week or two, it can germinate. At this time, it can be moved to a place with light