Herb calendar

This calendar shows when specific types of herbs are flowering  (in the Netherlands), each herb is explained by a short video. Parietaria judaice and Ambrosia artemisiifolia are the most allergenic.

herb calendar

Most allergenic herbs:

Rumex acetosa


Plantago lanceolata


Parietaria judaica

more information >>

Urtica dioica


Artemisia vulgaris

more information about Artemisia vulgaris >>

Chenopodium album



more information about Ambrosia >>