People who are unaware of their particular allergies often want to blame plants with bright, fragrant flowers even though these are often not the culprit. The plants that often cause allergies are those whose pollen is windborne and have inconspicuous flowers. Brightly colored, fragrant flowers have heavy pollen that need insects for transfer. Unfortunately, highly susceptible people may be affected by insect pollinated plants as well. The first step in gardening with allergies is to identify the plants which cause problems.
Allergies can change over time as can sensitivity.
By knowing your allergies you can begin developing avoidance strategies. The microenvironment you create for yourself may not help much on windy days at the peak of your allergy season, but it should help at other times. Utilize plants throughout the landscape that do not cause problems for your allergies. If you have allergies to tree pollen, your yard may be sunnier than your neighbors. If grasses cause problems, avoid large expanses of lawn.