矮牵牛(Petunia hybridaVilm.)是茄科碧冬茄属多年生草本植物,俗名灵芝牡丹、番薯花等,原产南美洲。由于矮牵牛栽培管理容易,对水肥和土壤的要求不高,花期长,着花多,花色艳丽,观赏效果极佳,因而被广泛种植。一、形态矮牵牛株高40cm～60cm,全株被腺毛,叶互生,上部对生,卵形,顶部渐尖或钝尖;花单生,漏斗状,直径5cm～7cm,冠檐部五钝裂,有白、粉、大红、桃红、紫、雪青等花色,花瓣有各种斑纹,也有镶边品种。露地栽培花期为4～11月,室内栽培花期更长。二、栽培要点 Petunia hybridaVilm. Is a Solanaceae Pestalla genus perennial herb, commonly known as Ganoderma lucidum peony, sweet potato flowers, native to South America. Petunia cultivation and management is easy, less demanding on water and fertilizer and soil, long flowering, more flowers, bright colors, excellent viewing effect, which has been widely planted. First, the shape of petunia plant height 40cm ~ 60cm, the whole plant is glandular hairy, leaves alternate, upper opposite, ovate, acuminate or blunt tip; flowers solitary, funnel-shaped, diameter 5cm ~ 7cm, crown eaves Five blunt, white, pink, red, pink, purple, snow green and other colors, petals have a variety of stripes, but also striped varieties. Open-field cultivation is from April to November, indoor flowering longer. Second, cultivation points