Hawthorn trees and shrubs are native to North America, Europe, and Asia. They produce clusters of white or pink flowers in ...

Imports of hawthorn are putting native hawthorn trees and hedges — as well as cotoneaster, apple, pear, and rowan — at risk and must be halted immediately say environmental groups.

Until the 1890s, hawthorn trees were believed to be a simple taxonomic group, ... Arthur Haines, a senior research botanist at the Native Plant Trust who has studied hawthorns for decades, ...

Common native hawthorn used to be guaranteed for Chelsea, but designers are now looking at closely-related plants from around the world, and the National Trust garden features an American species ...

Q: We were planning on using a native hawthorn as a boundary hedge around our country garden. But a friend has warned us off it, saying that there’s a disease spreading throughout Europe that ...

Ohio earlier this month banned the sale and planting of ornamental Callery pear trees that experts say are crowding out native trees and shrubs.. Immediately recognizable for their white blossoms ...