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Help > Conifers > Description of Specification Terms > Root Collar Diameter or Girth (CO4) >
CO4.3 Cell grown trees

For Cell grown trees, minimum Root Collar Diameters vary from 3 to 8 mm for Conifers, depending on overall height and size of cell.

Cell grown conifers

Root collar dia.

Overall height (cm)

Volume (cc)

3

10-20

50

4

20-40

100

6

40-60

150

8

60-90

N/A