Previous Madrid-Arganzuela — 2026
| Month | Cypress/Yew | London Plane | Grasses | Plantain | Olive |
|---|---|---|---|---|---|
| January | 315 | 0 | 1 | 0 | 0 |
| February | 1,704 | 1 | 8 | 0 | 0 |
| March | 270 | 5,411 | 11 | 1 | 1 |
| April | 32 | 869 | 271 | 25 | 1,475 |
| May | 17 | 7 | 308 | 42 | 684 |
| June | — | — | — | 26 | 58 |
| July | — | — | — | 2 | 2 |
| August | — | — | — | 1 | 0 |
| September | — | — | — | — | — |
| October | — | — | — | — | — |
| November | — | — | — | — | — |
| December | — | — | — | — | — |