| Testing place | Area (m2) | Environment | Overwintering rate (%) | |
| 2013 | 2014 | |||
| Beihai Pack | 500 | East slope under the willow | 88.0 | 100.0 |
| Yu Yuantan Park | 120 | South side of the short wall preventing stepping in winter | 93.8 | 100.0 |
| Bei Xiaohe Garden | 1500 | Slop, forest land, semi-shading | 76.6 | 100.0 |
| Ditan Park | 90 | Semi-shading under forest | 79.7 | 100.0 |
| Plant base in Changping | 1500 | Full sun | 84.4 | 100.0 |
| Jingshan Park | 130 | Under small trees, semi-shading |
| 100.0 |
| The Heaven Temple | 50 | Beside over-green tree, semi-shading |
| 100.0 |
| Beijing Zoo | 890 | Shady slope under large tree, shading and semi-shading |
| 100.0 |
| Beijing Botanical Garden | 50 | Under small tree, semi-shading |
| 100.0 |
| The Summer Palace | 50 | Lakeside, full sun |
| 100.0 |
| Liuyin Park | 50 | Lakeside, semi-shading |
| 100.0 |