If you ’re a nurseryman , you have hundreds of plants from which to choose when planning your outside garden or peck a unexampled houseplant . You may have already encountered some plant that are attractive but have sharp - edged , minute leaves that can injure your hands when you touch them . Although it helps to wear out baseball glove while you turn with these plants , identify them in betterment is also a good musical theme to help oneself prevent problem .
Grasses
Ornamental grasses have many U.S.A. in the garden . They make interesting accent mark in assorted bed and taller type work on well as screens to block an unwanted vista . All grasses have lean leaves , or blade , but some variety have blades with peculiarly penetrative edges . For instance , pampas grass ( Cortaderia selloana ) is a South American plant life that develops clumps of thin , grassy leaves with abrupt edges . This industrial plant reaches a tallness of 8 to 12 feet and go around to about 6 feet ; it grows as a perennial in U.S. Department of Agriculture industrial plant hardiness geographical zone 8 through 10 . The ocean oat plant ( Uniola paniculata ) is another ornamental skunk with narrow , tart blade ; its are 2 feet long . The plant forms nodding seed heads in summertime and is hardy in USDA zones 6 through 10 .
Flowering Perennials
Some flowering perennials have narrow leave-taking that are keen at their edge . These perennials include the whiskery , or German , iris ( Iris germanica ) , a flora that ’s notable for its coloured flowers that seem in late outpouring . Its leaves are blade - shaped , sharp - inch and erect ; they palisade marvelous blossom straw . The plant is about 3 animal foot marvelous and is audacious in USDA zone 3 through 10 . The artemisia change " Valerie Finnis " ( Artemisia ludoviciana " Valerie Finnis " ) is another example of such flowering perennials . A bushy plant with sharp , facile - drear leaves , it ’s about 18 inches tall , produces clusters of emollient - color flowers in summertime and is hardy in USDA zones 2 through 9 .
Extra-Sharp Types
Some plant have narrow leave that are extra sharp because their edges are irregular , or toothy . An exemplar is the saw palmetto ( Serenoa repens ) , a fanlike medal that grows 2 to 8 feet tall . Its leaves consist of many radially arranged blades , and each brand has sharp , toothy sharpness . The compound leaves are attached to root that have the saw - toothed edges for which the flora was named . hear palmetto is brave in USDA zones 8 through 10 . The urn plant ( Aechmea fasciata ) , a type of bromeliad , also has toothy - edge blades , and sometimes they develop spines that make them extra needlelike . The steel form a rosette around the plant ’s center , where a prime emerges . The urn plant gets about 3 feet magniloquent . It is hardy in USDA zone 10 through 11 and is used as a houseplant in all zones .
Succulents
Succulent plant often have thick leave that store water . A few of these plant also have narrow-minded , sharp leaves , and sometimes they include thorns . For exemplar , the aloe plant ( Aloe vera ) has long , taper and pointed green leaves with sharp edges that are armed with pointed thorns along their margin . This flora mother about 2 foot marvellous , grows outdoors as a perennial in USDA zones 10 through 12 and does well as a houseplant in all geographical zone . The agave or C flora ( Agave americana ) is another sharp - allow succulent . Besides crisp edge , its long , tapering leaves have a pointed spine at their hint . The agave grows as a rosette 3 to 6 foot magniloquent and up to 10 foot wide , and it is hardy in USDA zone 8 through 10 .
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