1, Coriander can be planted in March-May every year. Prepare seeds with good quality, soak the seeds in clear water, then prepare seedbeds for sowing, spread the seeds evenly, and cover the soil to promote germination. When the seedlings grow two real leaves, they can be transplanted and planted on cloudy days.

2. Polygonum cuspidatum can also be planted in separate plants, and the small plants can be separated and replanted. It can also be planted by cutting, cutting off the strong stolons that grow well, and then rooting by cutting.

3. In fact, Polygonum cuspidatum is a kind of herb, which is unremarkable and perennial, and generally grows on both sides of wet rivers, wetlands and grasses.