Finally beat ?-5 map. I used jp wiki method
1st : Bisorta + Strawberry = 377
2nd : Main army = 435-482. Mine was 461
3rd : Violetta pansy + Mint = 435
4th : Cylamen = 310
5th : Helper = 400-500. Suggested as strong as main army.
Those flowers mentioned above are 2*, even lv 1 works. I feel bad for using them as 'sacrificial method' but it works.
Forget to mention, squad 1-2-3-4 starts from TOP BASE and helper squad starts from BOTTOM BASE.
This works for people with 'strong helper squad'.