藿香露，中药名。为唇形科藿香属植物藿香 Agastache rugosa（Fisch.et Mey.）O.Ktze.的茎叶蒸馏所得的芳香水。具有消暑，正气的功效，主治暑湿气滞，胸闷呕恶。
Huo-xiang-lu, name of Chinese Medicinal Material. It is a fragrant water obtained by steam distillation of the stems and leaves of the plant Agastache rugosa (Fisch.et Mey.) O.Ktze, which belongs to the Lamiaceae family. It has the effects of relieving summer-heat and regulating the vital energy, and is mainly used to treat stagnation of summer-heat and dampness, as well as chest stuffiness and nausea.

功效作用 Efficacy and Functions

消暑，正气。
Relieve summer heat, invigorate qi.

主治 Indications

暑湿气滞，胸闷呕恶。
Stagnation of summer dampness in the body, leading to chest stuffiness and nausea.

用法用量 Dosage and Administration

内服：温饮，6-12g。
Internal administration: Warm decoction, 6-12g.

植物学信息 Botanical Information

植物种属：唇形科藿香属植物藿香。
The plant species is Pogostemon cablin, belonging to the genus Pogostemon in the Lamiaceae family.

形态特征 Morphological Characteristics

多年生芳香草本或半灌木。茎直立，高0.3-1m，四稜形，分枝，被绒毛。叶圆形或宽卵圆形，长2-10.5cm，宽1-8.5cm，先端钝或急尖，基部楔状渐狭，边缘具不规则的齿裂，草质，上面深绿色，被绒毛，老时渐稀疏，下面淡绿色，被绒毛，侧脉约5对，与中肋在上面稍凹陷或近平坦，下面突起；叶柄长1-6cm，被绒毛。轮伞花序10至多花，下部的稍疏离，向上密集，排列成长4-6.5cm宽1.5-1.8cm的穗状花序，穗状花序顶生及腋生，密被长绒毛，具总梗，梗长0.5-2cm，密被绒毛；苞片及小苞片线状披针形，比花萼稍短或与其近等长，密被绒毛。花萼筒状，长7-9mm，外被长绒毛，内被较短的绒毛，齿钻状披针形，长约为萼筒1/3。花冠紫色，长约1cm，裂片外面均被长毛。雄蕊外伸，具髯毛。花柱先端近相等2浅裂。花盘环状。花期4月。
Perennial aromatic herb or subshrub. Stems erect, 0.3-1m tall, four-angled, branching, and covered with hairs. Leaves are round or broadly ovate, 2-10.5cm long, 1-8.5cm wide, blunt or acute at the tip, cuneate and gradually narrowing at the base, with irregularly toothed margins, herbaceous, dark green on the upper surface, hairy, becoming sparse with age, light green on the lower surface, hairy, with about 5 pairs of lateral veins, slightly concave or nearly flat on the upper surface and raised on the lower surface; petioles 1-6cm long, hairy. Umbel inflorescence with 10 to many flowers, lower part slightly spaced out, becoming dense upwards, arranged in spike-like inflorescences 4-6.5cm long and 1.5-1.8cm wide, terminal and axillary, densely covered with long hairs, with a common stalk, 0.5-2cm long, densely hairy; bracts and bracteoles linear-lanceolate, slightly shorter than or nearly equal to the calyx, densely hairy. Calyx tubular, 7-9mm long, outer surface covered with long hairs, inner surface with shorter hairs, teeth lanceolate-serrate, about 1/3 the length of the calyx tube. Corolla purple, about 1cm long, outer surface of lobes covered with long hairs. Stamens exserted, with beards. Style with two shallow lobes near the tip. Disc annular. Flowering period in April.

分布区域 Distribution Area

中国台湾、广东海南和广州、广西南宁、福建厦门等地广为栽培，供药用。印度、斯里兰卡经马来西亚至印度尼西亚及菲律宾也有。
Widely cultivated in Chinese Taiwan, Hainan and Guangzhou in Guangdong, Nanning in Guangxi, Xiamen in Fujian, and other places for medicinal use. Also found in India, Sri Lanka, Malaysia, Indonesia, and the Philippines.

生长环境 Growing Environment

喜高温湿润气候，以年平均气温24-25℃最适宜生长，气温降至17℃以下，生长缓慢，植株能耐0℃短暂低温。雨量要充沛，分布均匀，要求年降雨量1600-2400mm。喜阳光，但在苗期和定植初期必须适度荫蔽，一旦长出新根和新叶后即去掉荫蔽。遇台风时枝叶易折断。以土质疏松、肥沃、排水良好微酸性的砂壤土栽培为宜。
Prefers a warm and humid climate, with an average annual temperature of 24–25°C being most suitable for growth. Growth slows when the temperature drops below 17°C, but the plant can tolerate brief exposure to 0°C. Requires abundant and evenly distributed rainfall, ideally 1600–2400 mm annually. It thrives in sunny conditions, though moderate shading is necessary during the seedling and early transplant stages. Once new roots and leaves emerge, shading should be removed. Branches and leaves are prone to breakage during typhoons. Best grown in loose, fertile, well-drained, slightly acidic sandy loam soil.

繁殖方式 Propagation Methods

用扦插繁殖，生产上采用直插法和插枝育苗移栽法。
Propagation is done by cuttings, with the direct insertion method and seedling cultivation via cuttings commonly used in production.

栽培技术 Cultivation Techniques

直插法：宜选取温暖多雨季节，如海南省，一般在9-10月，选生长旺盛，粗壮、节密，生长期4-5个月的植株，取中部茎的侧枝，长20-30cm，具6-7个节，下部3-4节褐色木栓化，用手将枝条自工戏上轻轻折下，使插枝附有部分主茎的韧皮组织。采苗时一般自茎基部逐层分次向上采取，每隔15-20天采1次。采下的苗应置于阴凉处，并要随采随种。插枝育苗：即将鲜枝条插于苗床上，待长根后再移栽大田。其方法及时间与直插法同。枝条插在苗床后，早上搭棚遮荫，晚上揭开，冬季应昼夜搭棚防霜害。每日早晚各浇水1次。插后10d左右发根。可施稀人粪水3-4次，20d后除去荫蔽物，1个月后即可定植。定植应在温暖湿润季节，广州郊区宜4月上旬，湛江地区在3-5月，四川在8-9月，海南可在7-8月及9-11月；一般采用斜插法，将苗的3/5斜插入土中，覆土压实，按行株距50cm×40cm的三角形种植，植后随即淋水，盖草遮荫。
The direct insertion method: Choose a warm and rainy season—typically September to October in Hainan Province. Select vigorous, thick, node-dense plants that have been growing for 4–5 months. Take side branches from the middle stem, 20–30cm long with 6–7 nodes, the lower 3–4 nodes being brown and corky. Gently break off the branch from the main stem so that some of the main stem's bark tissue remains attached. Harvest seedlings progressively upward from the base every 15–20 days. Place harvested cuttings in a shaded, cool area and plant them immediately. Seedling propagation by cutting: Insert fresh branches into seedbeds and transplant to the field after rooting. The method and timing are the same as the direct insertion method. After insertion, provide shade during the day and remove it at night; in winter, maintain shelter day and night to prevent frost. Water twice daily, morning and evening. Roots develop in about 10 days. Apply diluted human manure 3–4 times, remove shading after 20 days, and transplant after one month. Transplanting should occur during warm, humid seasons—early April in Guangzhou suburbs, March to May in Zhanjiang, August to September in Sichuan, and July–August or September–November in Hainan. Use the oblique insertion method: insert 3/5 of the seedling at an angle into the soil, press firmly, plant in a triangular pattern with 50cm × 40cm spacing, water immediately after planting, and cover with grass for shade.

病虫防治 Disease and Pest Control

病害有根腐病，可及时疏沟排水，挖除病株，用50%多菌灵1000倍液浇灌；还有细菌性角斑病等。地老虎，可人工捕杀或用毒饵诱杀（将麦麸炒香，用90%晶体敌百虫30倍液拌潮）。此外，还有蝼蛄、红蜘蛛等为害。
Diseases include root rot, which can be managed by timely drainage, removing infected plants, and drenching the soil with a 1000-fold dilution of 50% carbendazim solution; bacterial angular leaf spot may also occur. For pests like cutworms, manual removal or poisoned baits can be used (roast bran and mix with a 30-fold dilution of 90% trichlorfon crystal solution). Other pests include mole crickets and red spider mites.