Can you grow using natural rain water?

A question from a fellow grower:

Hello I’m new to growing and I wanted to know if you plant can still grow only using natural rain water or purified water with natural sunlight during the day and a few hours of regular light??? I’m trying to grow an all natural earth plant!!!

rain water is great free to

You need to make sure the PH of your rainwater is correct. Before watering your soil with rainwater; You need to make sure it is PH balanced between 6.5-7.0 Nothing better to start with aside from pure water.

Keep in mind. pure Sunlight, and pUre water is not going to grow healthy plants without some type of fertilizer; Whether it be chemical, or organic.