Do my flowers have a higher spawn rate if my friend waters them?

Question

I recently stumbled upon this Google sheet sent to me by a friend: https://docs.google.com/spreadsheets/d/1nI2JcIls4JnDZthCV88xx_X800h3wopKuV8yzqyVO1E/htmlview#gid=0

The claim is simple. Plants watered by your online friend seem to have more than a double spawn rate than ones you watered yourself.

I figured if this was accurate I'd be able to find talk online about this, bit couldn't find anything.

Does anyone know whether this true or not?

Answer 1

Earlier today I saw this reddit post claiming it to be true. The person who postet it even put another similar google document in the comments.