Age Class

Vigour Class and Condition Class

Normal Vigour & Good Condition

(NVG)

Able to be retained if sufficient space available above and below ground for future growth.

No remedial work or improvement to growing environment required. May be subject to abnormal vigour.

Retention potential - Medium - Long Term.

Able to be retained if sufficient space available above and below ground for future growth. Remedial work may be required or improvement to growing environment may assist.  

Retention potential - Medium Term.

Potential for longer with remediation or favourable environmental conditions.

Able to be retained if sufficient space available above and below ground for future growth. Remedial work unlikely to assist condition, improvement to growing environment may assist.   

Retention potential - Short Term. Potential for longer with remediation or favourable environmental conditions.

May be able to be retained if sufficient space available above and below ground for future growth. No remedial work required, but improvement to growing environment may assist vigour. Retention potential - Short Term. Potential for longer with remediation or favourable environmental conditions.

May be able to be retained if sufficient space available above and below ground for future growth. Remedial work or improvement to growing environment may assist condition and vigour. Retention potential - Short Term. Potential for longer with remediation or favourable environmental conditions.

Unlikely to be able to be retained if sufficient space available above and below ground for future growth. Remedial work or improvement to growing environment unlikely to assist condition or vigour. Retention potential - Likely to be removed immediately or retained for Short Term. Potential for longer with remediation or favourable environmental conditions.

Young

(Y)

Index Value 9

Retention potential - Long Term.

Likely to provide minimal contribution to local amenity if height <5m.   High potential for future growth and adaptability.   

Retain, move or replace.

Index Value 8

Retention potential - Short - Medium Term. Potential for longer with improved growing conditions.

Likely to provide minimal contribution to local amenity if height <5m.  

High-moderate potential for future growth and adaptability.   

Retain, move or replace.

Index Value 5

Retention potential - Short Term. Potential for longer with improved growing conditions.

Likely to provide minimal contribution to local amenity if height <5m.   Moderate-low potential for future growth and adaptability.   

Retain, move or replace.

Index Value 4

Retention potential - Short Term. Potential for longer with improved growing conditions.

Likely to provide minimal contribution to local amenity if height <5m.   Moderate potential for future growth and adaptability.   

Retain, move or replace.

Index Value 3

Retention potential - Short Term. Potential for longer with improved growing conditions.

Likely to provide minimal contribution to local amenity if height <5m.   Moderate-low potential for future growth and adaptability.   

Retain, move or replace.

Index Value 1

Retention potential - Likely to be removed immediately or retained for Short Term.

Likely to provide minimal contribution to local amenity if height <5m.   Low potential for future growth and adaptability.   

Mature

(M)

Index Value 10

Retention potential -Medium - Long Term.

Index Value 9

Retention potential - Medium Term.

Potential for longer with improved growing conditions.

Index Value 6

Retention potential - Short Term.

Potential for longer with improved growing conditions.

Index Value 5

Retention potential - Short Term. Potential for longer with improved growing conditions.

Index Value 4

Retention potential - Short Term.

Potential for longer with improved growing conditions.

Index Value 2

Retention potential - Likely to be removed immediately or retained for Short Term.

Over-mature

(O)

Index Value 6

Retention potential - Medium - Long Term.

Index Value 5

Retention potential - Medium Term.

Index Value 4

Retention potential - Short Term.

Index Value 3

Retention potential - Short Term.

Potential for longer with improved growing conditions.

Index Value 2

Retention potential - Short Term.

Index Value 0

Retention potential - Likely to be removed immediately or retained for Short Term.