Pollen Flight Calendar
The pollen flight calendar provides a rough overview of when pollen from which plant species are present in the air. The red boxes indicate the core flight periods, while the orange boxes symbolize possible pollen flights.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Alder | Jan | February to March | Apr | ||||||||
| Hazel | Jan | February to March | Apr | ||||||||
| Elm | March to April | ||||||||||
| Willow | March to May | ||||||||||
| Poplar | Mar | Apr | May | ||||||||
| Maple | Mar | April to May | Jun | ||||||||
| Yew | Mar | April to May | Jun | ||||||||
| Birch | Mar | April to May | |||||||||
| Oak | Mar | April to May | |||||||||
| Ash | Mar | April to May | |||||||||
| Hornbeam | Mar | April to May | |||||||||
| Rapeseed | April to August | ||||||||||
| Ash | April to May | ||||||||||
| Lilac | April to May | ||||||||||
| Plane tree | April to May | ||||||||||
| Beech | April to May | ||||||||||
| Ribwort plantain | Apr | May to August | |||||||||
| Dock | Apr | May to July | Aug | ||||||||
| Dandelion | Apr | May to June | July | ||||||||
| Spruce | Apr | May to June | |||||||||
| Walnut | Apr | May | Jun | ||||||||
| Hops | May | ||||||||||
| Acacia | May to June | ||||||||||
| Horse chestnut | May to June | ||||||||||
| Wheat | May to July | ||||||||||
| Grasses | May to August | Sep | |||||||||
| Pine | May to August | Sep | |||||||||
| Elder | May | June to July | Aug | ||||||||
| Oats | May | June to July | |||||||||
| Rye | May | June | Jul | ||||||||
| Fir | May | Jun | |||||||||
| Barley | June to July | ||||||||||
| Lime tree | June to July | ||||||||||
| Goosefoot | June to August | ||||||||||
| Mugwort | June to August | Sep | |||||||||
| Goldenrod | June to August | Sep | |||||||||
| Stinging nettle | June to October | ||||||||||
| Maize | Jun | July | Aug | ||||||||
| Nettle | Jun | July to August | Sep | ||||||||
| Ambrosia | August to September | ||||||||||
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | |