The seeds of Agastache can be planted in spring or autumn. Wait until most of the agastache seeds turn brown for harvesting, and then place them in a cool place to dry the threshed seeds. Wait until the right time to stop sowing, first mix the seeds with fine sand or grass ash, and then evenly spread the seeds on the soil, and also gently pat the soil surface with a thin plate, so that the seeds can be in close contact with the soil surface, with a thickness of about 1cm.
Generally, the Cuttage Propagation of Agastache rugosa is carried out from October to November or from March to April. It's best to do it in rainy days. Select the vigorous young shoots and top shoots of the year, cut them into small segments of about 10-15 cm with 3-4 nodes, remove the lower leaves, insert 1 /3 of the depth, and then water and cover the grass in time.
The advantage of transplanting old roots is that they are easy to survive, and they can sprout in the next may or so. Use scissors close to the ground to cut off the dead stems on the ground in winter, and then pour a thin fecal water to facilitate its growth. When the height of the seedlings is about 9-15 cm, the seedlings can be dug up in rainy or cloudy days, and transplanted to the field with soil. Transplanting should be controlled reasonably. After planting, water once thin fecal water immediately for survival. From the end of June to the beginning of July, the perennial roots began to bloom.