| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | — | — | — | — | — |
| February | — | — | — | — | — |
| March | — | — | — | — | — |
| April | — | — | — | — | — |
| May | 150 (High) | 14 (Low) | 634 (Very high) | 169 (Very high) | 352 (High) |
| June | 16 (Low) | 7 (Low) | 443 (Very high) | 54 (High) | 562 (Very high) |
| July | 2 (Low) | 4 (Low) | 17 (Low) | 5 (Low) | 3 (Low) |
| August | 1 (Low) | 1 (Low) | 6 (Low) | 3 (Low) | 4 (Low) |
| September | 1 (Low) | 4 (Low) | 9 (Low) | 2 (Low) | 3 (Low) |
| October | 5 (Low) | 2 (Low) | 3 (Low) | 1 (Low) | 1 (Low) |
| November | 16 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 1 (Low) |
| December | 30 (Medium) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) |