We Start From The Bottom

I am a gardener,
I know plants grow at the bottom first,
Root before stem,
Stem before flower.

The soil must be rich, dark,
I must water until it's soaked
So thirsty roots
Will go deep to drink
Not fan out on the surface
To wither in the heat.

Go down first,
Trust depths and darkness,
Then flower.

p/s: Study this meaningful poem.