This is a test of commonsense. Complete the next sentence:

How to preserve eucalyptus
Collect eucalyptus when it is in peak condition.
To ensure you preserve only the finest eucalyptus, harvest the branches when they are at their healthiest. This will reduce the time and effort you need to spend pruning the branches later.
There are over 700 species of eucalyptus trees and plants, so it can be difficult to know what branches in peak condition look like. Generalizing about their properties at their peak is impossible.