Hay fever? Five plants for allergy sufferers. Hay fever can cause unpleasant symptoms such as sneezing, runny nose, itchy eyes and difficulty breathing during pollen season.

Grasses such as rye, wheat, barley and rapeseed are among the main causes of hay fever because they produce large amounts of pollen. Low-pollen plants : Some plant species produce pollen that is heavy and therefore does not easily become airborne. Non-wind-pollinated plants : Plants that are pollinated not by wind but by insects or self-pollination produce less pollen.