大花金鸡菊(Coreopsis grandiflora)为菊科金鸡菊属宿根草本,可做一二年生栽培。头状花序,单瓣、重瓣或半重瓣。舌状花黄色或金黄色,花期6～9月。基生叶片披针形,茎生叶3～5片,深裂,裂片披针形至线形。地栽株高40～50cm。习性幼苗喜凉爽、喜光,成龄株性强健,喜光照充足,耐寒,也耐一定的炎热,耐旱,喜空气干燥,对介质要求不严。在湿润、排水良好的壤土中长势最佳。播种或分株繁殖。大规模生产常用播 Coreopsis grandiflora (Coreopsis grandiflora) as Compositae Coreopsis is a perennial herb, can do biennial cultivation. Flower heads, single, double or double. Tongue yellow or golden yellow, flowering from June to September. Basal leaves lanceolate, cauline leaves 3 to 5, parted, lobes lanceolate to linear. Plant height 40 ~ 50cm. Habitat seedlings hi cool, hi light, strong aging plant, like ample light, cold, but also resistant to a certain degree of heat, drought, like air dry, lax requirements of the media. Grow best in moist, well drained loam. Seeding or ramets breeding. Large-scale production of commonly used broadcast