Solve two problems: ① Are these two kinds of rose flowers suitable for sowing? ② What kind of seed is it? ... ~ ~ Yes.

The rose varieties in the figure 1 seem to be immature, and most of them are planted by cutting, and there are often poor species in sowing methods. If planted, they can germinate in autumn and spring.

The second picture shows the seeds of Osmunda japonica, and the black ones can be planted. The mature seeds are dried in the sun, buried in the sand and put in the shade for overwintering, sown in late February to early March, spread or spread with wide banners, covered with a layer of fine burnt marl, and covered with grass, and germinated for more than 10 days.