There will be many Honkai Star Dome Railway players who still don’t know the guide on how to unlock the Honkai Star Dome Railway Gardening Master achievement. Then the editor of Sourcecode.com shared the "How to unlock the Honkai Star Dome Railway Gardening Master achievement" below, if you are interested. Let’s take a look below, I hope it will be helpful to you.
1. The Collapse Star Railway Gardening Master achievement requires killing Huanhu without killing Xiaohua, so AOE is definitely not allowed in the team formation.
2. We should go to the Immortal Shenshi dungeon and change the main C to someone who can only deal single-target damage, such as Xi'er and Yanqing. Even if you haven't practiced Dan Heng, it's okay. If it doesn't work, just borrow the boss's.
3. When the BOSS enters the 1/3 stage, it will summon the Fertile Mysterious Lotus. If we kill the BOSS without caring about it, we can get the achievement (because this flower absorbs combat skill points, the fight may be a bit slow)
This is the guide on how to unlock the Gardening Master achievement in "Collapsed Star Railroad". It also solves this problem for everyone in great detail. I believe everyone will suddenly understand it after reading this guide.