One could say:
There are petals for every flower
A record of moments
Every so many years

Then a petal falls
Childhood play games
Your first best friend
Your first mistakes

Then a petal falls
The love in your life
The ring bringing trust
To a new found bond

Then a petal falls
To watch new steps
Learn love again
To guide and overcome
Children growing up

Then a petal falls
The first realization
Everything cycled complete

Then the petals continue
And one could say
Flowers forget
the petals are always beautiful

Bradley Flowers

http://www.poemhunter.com/poem/petals-of-our-life/