On the right is a comparison in growth rates between planting tubestock and a more mature tree.
In February 2009 we planted 3 messmate gums at the nursery. Two were tubestock and the third was a more mature plant in a 30cm pot.

Compare their heights against the fence railing. After 20 months the two tubestocks are approximately double the height of the 30 cm pot tree.

30cm pot
Tubestock
One week after planting.
Five months after planting.
Fourteen months after planting.
Twenty months after planting.
The nursery was hit by strong winds 2 years after planting.
The less developed roots of the tree from the 30cm pot could not provide sufficient support and the tree soon died. The tubestock trees were not affected.