1990年以来,首钢绿化研究所率先开展了“晚秋园林植物引种栽培应用研究”,至今成果显著。芸香(Ruta graveolens)为其中最引人注目的晚秋植物。系芸香科多年生草本植物(图1),株高50～80厘米,全株叶片灰绿色,散发出清凉的香味。原产南欧和地中海沿岸,我国引种已有40多年了,过去只在药圃种植。在北京地区芸香的生长期从3月中旬到12月中旬,生长期长达270天,而北京的无霜期只有 Since 1990, Shougang Institute of Greens took the lead in carrying out “late autumn garden plant introduction and cultivation of applied research”, the results so far. Ruta graveolens is one of the most attractive late autumn plants. Department of Rutaceae perennial herbs (Figure 1), height 50 to 80 cm, the whole plant gray-green leaves, emitting a cool fragrance. Originated in southern Europe and the Mediterranean coast, China has been introduced for more than 40 years, in the past only planted in the drug garden. Rutaceae in Beijing during the growing period from mid-March to mid-December, the growth period of up to 270 days, while the frost-free period in Beijing only