| 1 | 2 | 3 | 4 |
1. Size of tree | small | medium | large | huge |
2. Useful life expectancy | 10-20 | 20-40 | 40-100 | 100 plus |
3. Importance of position in landscape | little | some | considerable | great |
4. Presence of other trees | many | some | few | none |
5. Relation to the setting | mod. suitable | fairly suitable | very suitable | especially suitable |
6. Form | poor | fair | good | excep good |
7. Special factors | none | one | two | three |