Received: 01-07-2020 / Accepted: 03-03-2021
Hedychium(ginger-lily)genus, belongs to Zingiberaceae familyand is not only known as medicinal plants but also ornamental materials. Our study focused on evaluating the characteristics of growth, development, and flower quality of five ginger-lily accessions, collected in some Northern provinces of Vietnam and planted in Gia Lam, Hanoi for ornamental purposes. The experiment was arranged in blocks of non-repeating sequence, each accession being as one block. The results showed that five ginger-lily accessions grew all-year-round, lacked the withering stage, flowered from July to November, had the height of plants from 90.5 to 168.8 cm, with slight pest damage. The flowers of all accessions were fragrance with the milky white perianth, except the NT3 had bright yellow perianth. Five ginger-lily accessions hadlongevity of spike from 15 to 27 days, a big spike with 8.5 to 29.2cm in length and 1.9 to 8.5cm in diameter, number of bracts on a spike from 8 to 30, number of flowers on the bract from 2 to 7 flowers/bract, number of the spike on a clump from 1 to 4 spike/clump. In conclusion, all five accessions were well suited to develop decorative landscaping and cut flowers purpose.