general - root collar diameter - cell grown trees - seedlings and transplants (open) - seedlings and transplants (container) - girth
Increasingly coniferous forestry seedlings are grown in cells. However, if they are grown in other, more conventional containers the following root collar diameter grades apply.
Species |
Minimum height |
Min. root collar diameter |
Minimum container size |
cm |
mm |
ml |
|
|
20 |
4 |
100 |
|
12 |
2 |
100 |
|
20 |
3 |
100 |