中药材的采收与加工桔梗：秋季种子成熟是收根的最佳时期。采收时用工具将根挖出，立即放入水中浸泡。然后用碗片刮去或趁鲜撸去外皮，切掉残茎，晒干或烘干即可。如果秋季来不及起挖，可在翌年初春进行收获。红花：花朵由金黄色变为红色时即可以采收。一般在开花旺期选晴... The harvesting and processing of Chinese medicinal materials of Chinese platycodon: The best time for harvesting is to mature the seeds in autumn. When harvesting, use tools to dig out the roots and immediately soak in water. Then use a bowl to scrape or remove the scallops, remove the remaining stems, dry, or dry. If it is too late to dig in the fall, it can be harvested in early spring. Safflower: Flowers can be harvested when they change from golden yellow to red. Generally selected during the flowering season...