Hardwood deciduous trees like oak, maple, cedar, box elder and elm can cause sneezing, while trees with big, bright flowers, like apple, cherry and dogwood, usually have larger pollen that doesn’t blow around as much. Choose low-allergy trees like dogwood, double-flowered cherry and magnolia. Female ash and female maple trees are considered low-allergy, too, but buy from a reliable nursery source to be sure of the tree's gender.
Other low-allergy trees include ironbark, eucalyptus, crape myrtle, flowering crabapple, cherry, pear, dogwood and magnolia.
Small deciduous trees like redbud, hawthorn, fringetree and dogwood are among the best trees for allergy sufferers. Others include crabapple, golden-rain tree, dawn redwood and flowering pear. Flowering shrubs such as shrub dogwoods, cotoneaster, deutzia, rose-of-Sharon, flowering quince, bluemist shrub and butterfly bush.
Evergreens like firs, cedars and strawberry tree (Arbutus unedo) are good for the allergy-sensitive homeowner, as well as the fruit trees like apricots, avocados, peaches, plums, nectarines, persimmon, pineapple, guava, almonds and flowering pears.