a plant variety that has been produced in cultivation by either selective breeding or naturally occurring mutation; cultivars can arise from crossing genetically similar species, the same species, distinct similar species cultivars, distinct same species cultivars, a combination of the aforementioned methods, or mutations caused by natural selective processes; cultivars can be sterile or fertile […]


shedding its leaves annually during the autumn


retaining its leaves throughout the year

full shade

less than four hours of unfiltered sunlight per day

full sun

six or more hours of unfiltered sunlight per day

hardiness zone

a geographic area defined to encompass a certain range of climatic conditions relevant to plant growth and survival Need help finding out your Hardiness Zone?


a plant that is both non-native to the US and able to establish on many sites, grow quickly, and spread to the point of disrupting plant communities or ecosystems


mast is considered the edible vegetative or reproductive parts produced by woody species of plants, i.e. trees and shrubs, that wildlife and some domestic animals consume as a food source


a naturally occurring plant originally indigenous to the US


a plant introduced with human help (intentionally or accidentally) to the US where it was not previously found – not yet invasive