| Doubles | |
|---|---|
| 2015 Blossom Cup | |
| Champions |  Eri Hozumi Makoto Ninomiya |
| Runners-up | Hiroko Kuwata Junri Namigata |
| Final score | 6–3, 6–7(2–7), [10–2] |
Chan Chin-wei and Xu Yifan were the defending champions, however they lost to the third seeds Hiroko Kuwata and Junri Namigata in the semifinals.
The fourth seeds Eri Hozumi and Makoto Ninomiya won the title, defeating Kuwata and Namigata in an all-Japanese final, 6–3, 6–7(2–7), [10–2].
Chuang Chia-jung / 
Liang Chen (quarterfinals) Chan Chin-wei / Xu Yifan (semifinals) Hiroko Kuwata / Junri Namigata (final) Eri Hozumi / Makoto Ninomiya (champions)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | C-j Chuang C Liang | 6 | 78 | ||||||||||||||||||||||||
 N Broady  J Ostapenko | 4 | 66 | 1 | C-j Chuang C Liang | 3 | 2 | |||||||||||||||||||||
Q Ye  L Zhang | 6 | 6 | Q Ye L Zhang | 6 | 6 | ||||||||||||||||||||||
| WC | Yan Wang X You | 3 | 4 | Q Ye L Zhang | 77 | 3 | [9] | ||||||||||||||||||||
| 4 | E Hozumi M Ninomiya | 6 | 6 | 4 | E Hozumi M Ninomiya | 65 | 6 | [11] | |||||||||||||||||||
C-y Hsu  N Stojanović | 3 | 4 | 4 | E Hozumi M Ninomiya | 6 | 6 | |||||||||||||||||||||
| C Liu K Zhang | 3 | 77 | [11] |  N Lertcheewakarn V Wongteanchai | 1 | 1 | |||||||||||||||||||||
| N Lertcheewakarn V Wongteanchai | 6 | 62 | [13] | 4 | E Hozumi M Ninomiya | 6 | 62 | [10] | |||||||||||||||||||
 N-l Han Y-h Lee | 4 | 6 | [10] | 3 | H Kuwata J Namigata | 3 | 77 | [2] | |||||||||||||||||||
R Fujiwara  M Linette | 6 | 0 | [5] | N-l Han Y-h Lee | 3 | 6 | [14] | ||||||||||||||||||||
| R Tian Z Yang | 4 | 5 | 3 | H Kuwata J Namigata | 6 | 3 | [16] | ||||||||||||||||||||
| 3 | H Kuwata J Namigata | 6 | 7 | 3 | H Kuwata J Namigata | 4 | 7 | [10] | |||||||||||||||||||
| WC | X Gao Y Xin | 2 | 6 | [5] | 2 | C-w Chan Y Xu | 6 | 5 | [7] | ||||||||||||||||||
| WC | J Chen A Zhu | 6 | 1 | [10] | WC | J Chen A Zhu | 5 | 2 | |||||||||||||||||||
 D Jakupović  A Raina | 2 | 3 | 2 | C-w Chan Y Xu | 7 | 6 | |||||||||||||||||||||
| 2 | C-w Chan Y Xu | 6 | 6 | ||||||||||||||||||||||||
The tournament in Xi'an was a new addition to the ITF Women's Circuit.
The tournament in Nanchang was a new addition to the WTA 125K series.
Shuko Aoyama and Misaki Doi were the defending champions, however Doi chose not to participate. Aoyama partnered Junri Namigata, but lost in the final to Eri Hozumi and Makoto Ninomiya in an all-Japanese final, 6–3, 7–5.
This was a new event in the 2015 ITF Women's Circuit.
The 2015 Blossom Cup is a professional tennis tournament played on outdoor hard courts. It is the seventh edition of the tournament which is part of the 2015 ITF Women's Circuit, offering a total of $50,000 in prize money. It takes place in Quanzhou, China, on 23–29 March 2015.
Jarmila Gajdošová and Arina Rodionova were the defending champions, but chose not to participate.
Jarmila Gajdošová and Arina Rodionova were the defending champions, but both players chose to participate at the 2015 Internazionali BNL d'Italia.
This was a new event to the ITF Women's Circuit.
Misaki Doi and Xu Yifan were the defending champions of 2013, the tournament was not held in 2014. Doi chose not to participate. Xu partnered Wang Yafan, but lost in the quarterfinals to Yang Zhaoxuan and Zhang Yuxuan.
Chan Hao-ching and Chan Yung-jan were the defending champions, but they chose not to participate this year.
This was a new event on the ITF Women's Circuit.
Eri Hozumi and Makoto Ninomiya were the defending champions, but both players chose to participate with different partners.
This was the first edition of the tournament.
Eri Hozumi and Makoto Ninomiya were the defending champions, but Hozumi chose to participate in Canberra instead. Ninomiya partnered Shuko Aoyama and successfully defended her title, they defeated Chinese wildcards Lu Jingjing and Zhang Yuxuan in the final, 6–3, 6–0.
Wang Yafan and Xu Yifan were the defending champions, but both players chose to participate in Anning and Madrid instead, respectively.
Shuko Aoyama and Makoto Ninomiya were the defending champions, but both players chose not to participate.
Rika Fujiwara and Yuki Naito were the defending champions and successfully defended their title after defeating Eri Hozumi and Junri Namigata 6–1, 6–3 in the final.
Eri Hozumi and Miyu Kato were the defending champions, but Kato chose to compete at the 2018 J&T Banka Prague Open. Hozumi chose to partner Makoto Ninomiya but lost in the semifinals to Ksenia Lykina and Emily Webley-Smith.
Barbora Krejčíková and Kateřina Siniaková were the defending champions, but lost in the first round to Nadiia Kichenok and Abigail Spears.
Rika Fujiwara and Yuki Naito were the two-time defending champions, having won the previous editions in 2016 and 2017, however both players chose not to participate.