Paulownia tomentosa (P. imperialis)
| Root Ball / Pot | Girth | 
|---|
 |  | 
| Standard tree |  | 
| rb | 06/08 | 
| rb | 08/10 | 
| rb | 10/12 | 
| rb | 12/14 | 
| rb | 14/16 | 
| rb | 16/18 | 
| rb | 18/20 | 
| rb | 20/25 | 
| rb | 25/30 | 
| rb | 30/35 | 
 |  | 
| Clt.25-30 | 10/12 | 
| Clt.35 | 12/14 | 
| Clt.35-50 | 14/16 | 
| Clt.50-70 | 16/18 | 
| Clt.130 | 18/20 | 
| Clt.150 | 20/25 |