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地被菊新品种群(Dendranthema×grandiflora Tzvel.Ground—Cover Chrysanthemum Group)是80年代初期选育而成的。于1989年10月～1992年10月在哈尔滨地区进行该品种群的引种栽培试验,共引种18个品种。试验结果表明:地被菊中的大部分品种在哈尔滨地区栽培表现良好,仅在栽培的第1～2年稍加埋土防寒即可越冬,成年以后则不加任何保护措施,就可越冬成活。其优点:(1)高生长、冠幅、花朵大小均明显大于北京的同类品种;(2)花期均迟于北京地区;(3)在背阴的小区里,大部品种(除早花品种外)开花可持续至10月30日左右;在空旷地栽培的品种,花朵会受初霜(9月底或10月初)冻害,但花蕾不受冻害在初霜以后气温回升,还可继续开花。地被菊新品种可在哈尔滨地区推广栽培。
The Dendranthema × grandiflora Tzvel. Ground-Cover Chrysanthemum Group was bred in the early 1980s. In October 1989 to October 1992 in Harbin, the introduction of cultivars of the population test, a total of 18 varieties were introduced. The results showed that most of the cultivars in ground chrysanthemum cultivated well in Harbin. Only in the first year and the second year of cultivation, it could be overwintered with the help of buried soil to protect against cold and without any protective measures after being adult, . Its advantages are: (1) High growth, crown width and flower size are significantly larger than those in Beijing; (2) Flowering is later than Beijing area; (3) In the shady area, most varieties ) Flowering can last till around October 30; flowers cultivated in open areas will be frostbite on the first frost (late September or early October), but the fronds will not be frostbite. After the first frost, the temperature will rise and flowers may continue. To be a new variety of chrysanthemums can be promoted in Harbin cultivation.