Because the bulk of ornamental plants produce flowers , many also cause allergies when the blossom bring out pollen grains into the air travel . For home nurseryman concerned about allergic reaction , take plants that are pollinate by insects or that produce comparatively little amounts of airborne pollen allow the enjoyment of decorative plants without the sneezing , stuffy nose , watery eye , or gravelly throat of sensitized reactions .
High-Pollen Flowers
A study by the Allergy and Clinical Immunology Unit at Meir General Hospital in Israel , published in 1998 , found that among the plants that produce the most allergy - causing pollen are bloom such as chrysanthemum , daisies , lilies , crocuses , hyacinths , roses and tulip . Beside producing pollen , the perfume of such flowers can set off allergies or an asthma attack . If allergic reaction are a concern , the best alternative is to select decorative plants without a heavy floral or perfume scent .
Pollen-Bearing Trees
Pollen - stomach Tree also can increase cases of coryza . Oak is the deciduous tree most have sex for cause allergy . People hypersensitized to pollen should also consider planting choice to pine , cedar , cypress , elm , mulberry , ash , birch , maple and sycamore in their home landscapes . Other trees that contribute to allergic reaction , according to the Asthma & Allergy Foundation of America , are redwoods , palm , beech tree , hickory trees , poplar , cottonwoods , willows , alders , aspen , corner elders , pecans , walnuts and olive trees . English common ivy and other common ivy varieties that climb up tree and walls also can cause respiratory , as well as skin , allergic reaction .
One selection for allergy martyr is imbed female ornamental trees that hold source or fruit instead of producing pollen . Ash , poplar and mulberry tree are among these assortment . Another choice is to grow fruit tree such as orchard apple tree , pear , cherry , citrus fruit and apricot , which are cross-pollinate by insects and do not disperse as much pollen via the air .
While not pollen bearing , the ficus make water the list of cosmetic trees that get allergies because the sap on its leaves attracts dust , which is an thorn for many allergic reaction sick person . Typically found in base and office , the popular decorative tree is also troublesome for people with latex paint allergies . A study by researchers at Saint - Pierre University Hospital in Brussels , Belgium , published in 2006 found genus Ficus and yucca to be among the leading indoor cosmetic plants that cause allergy .
Shrubs and Grasses
The Asthma & Allergy Foundation of America commend people with allergies stay off from cosmetic bush and grass that gun trigger allergy symptom . Juniper and cypress are the top ornamental bushes that contribute to early spring allergies .
sure type of decorative grasses , commonly used for accenting peak bed or landscaping border , can work havoc on people suffer from allergies , hay fever or bronchial asthma . Ornamental grasses that are not kind to allergy sufferers are repeated Secale cereale , saltiness grass , fescue , sweet vernal , Bermuda Gunter Wilhelm Grass , June Gunter Wilhelm Grass , orchard grass , redtop grass , Johnson pasturage and timothy .
