Passion #1

There is no straight answer. It depends on the plant and your environment. Like asking if anti freeze is important in a car. If you are somewhere it gets below freezing, probably yes. If not, probably no. It all depends on the humidity and airflow. Plants are only at the pinnacle of evolution for the environment they evolved in. If you remove them from that climate and grow them elswhere, they may do terribly as they are not suited for that climate or environment. Like a polar bear trying to survive in the Sahara, pinnacle predator in the cold, but dead fast in the heat. We are now growing mostly polyhybrids bred for stable indoor climates and sometimes they need some help outside. You need to work out what is best for your environment.