調子の良い株・悪い株はどう違う？サルビア・セージの植え替え

I bought seedlings of Salvia Cosmic Blue and Rusty Sage in June and started growing them. Both are perennial plants of the mint family, and were planted in the same soil and grown in the same environment. However, there was a big difference in their growth. I also checked the root growth to see what the difference is between healthy and unhealthy plants, so if you're interested in horticulture and gardening, please watch the video until the end.