Q.China Doll Plant
Could you tell me if the China Doll plant, when planted out in the garden, has a big root system, as I have planted it not far from a concrete water tank and wouldn’t like it to damage the tank if it has a big root system and the roots should head that way?

Certified GKH Gardening Expert
They do not have invasive root systems, so it should not cause any problems. That being said, any tree will seek out sources of water if it is severely water stressed. If you experience unusual dry spells, make sure you give it extra water so that it does not start to look for water in your tank.