Proverbs that come to mind –

The first year it sleeps, the second year it creeps, the third year it leaps.

When eating bamboo sprouts, remember the man who planted them.

An image of a bamboo has already been formed in mind before it is committed to the painting canvas.

http://www.listofproverbs.com/keywords/bamboo/

https://bambubatu.com/bamboo-proverbs-great-quotes-about-bamboo/