Solidago is a perennial herb of Solidago in Compositae. Solidago is lush, with yellow flowers and obvious inflorescences. It can be planted in clumps, as the background of flower border, and it is very effective to decorate the open forest edge, and it can also be used as cut flowers. Solidago is the state flower of Nebraska, Kentucky and other states in the United States. Solidago canadensis, introduced for ornamental purposes in China, is an excellent nectar raw material, and its reproductive ability is very strong. Now it has become one of the main weeds in wasteland and open land in East China, so attention should be paid to prevention in newly introduced places. Solidago Solidago is cold-resistant and drought-tolerant, and it can survive the winter safely in Fushun with the lowest temperature of -32℃ in winter.

(1) sow and raise seedlings. Fully mature seeds can be harvested in Fushun, a cold region. The seeds of Solidago can be used for 2 years, and the 1000-grain weight of the seeds is about 0.15g. Sow with ordinary nutrient soil, with dry seeds 1 g per square meter of seedbed, and the seeds are covered with fine soil of about 0.2 cm. The ground temperature is controlled at about 22℃, and the seeds are sown dry for 5 days to emerge. When there are1~ 2 leaves, the seedlings are grown in containers with a diameter of 7 ~ 8 cm, or the seedlings are divided by ditching. The temperature requirement at seedling stage is not strict, and it is generally controlled from moderate to low. See the light fully. Soil moisture is moderate to a little more controlled, and if it is found to be excessive, it should be less controlled. Sowing seedlings bloom in the same year.

(2) Propagation by ramets. The parent plants that overwinter in the open field can be propagated by dividing plants in spring or in autumn. Generally, ramets are divided into 2-3 years 1 time. Dig out the whole mother plant and divide it into plants. There are 2 ~ 3 buds in each cluster, which should be cultivated immediately after plant division.