紫茉莉又称草茉莉、夜娇娇、胭脂花,是多年生草本植物。该植株不耐寒,冬季地上部分枯死。江南地区,地下根系可安全越冬,而成宿根花卉,来年萌发出新的植株;北方可在秋季落叶后,剪掉地上部分植株、然后将块根带土团掘起,堆放在地窖内贮藏越冬,来年4月上旬栽入露地,这样成株快,开花也早。但在园林中多作一年生栽培。紫茉莉可以自花授粉,也易异花授粉,故容易杂交。杂交种主要表现在花色多、条纹复色等。如果发现观赏价值比较高的植株,应隔离种植,但往往即便如此,其后代也不一定能保持母本的优良性状。所以,最好的方法就是扦插。扦插时,可以用植株的顶芽、腋芽、脚芽等萌发生根。其 Mirabilis jasmine, also known as grass, night delicate, rouge flowers, is a perennial herb. The plant is not cold-tolerant, partly dead in the winter. In the southern part of the Yangtze River, the underground roots can be safely wintered. However, the flower rooted in the root can grow into a new plant in the coming year. In the north, after the autumn leaves are deciduous, the plants on the ground can be cut off. In early April next year planted open field, so into a plant fast, early flowering. But in the garden for more annual cultivation. Mirabilis can self-pollination, but also easy to pollinate, it is easy to cross. Hybrids are mainly manifested in color and more complex stripes and so on. If plants with higher ornamental value are found, they should be isolated and planted, but even then, their offspring may not be able to maintain the excellent traits of the female parent. So, the best way is to cuttings. Cutting, you can use the plant’s top buds, axillary buds, buds and other sprouting roots. its