Trifoliate Orange

Also known as Hardy Orange, Japanese Bitter Orange, Chinese Bitter Orange

Armed with formidable green spines up to five centimeters long, this exceptionally cold-hardy citrus shrugs off freezing winters that would kill other citrus trees. In early spring, fragrant white blossoms emerge on bare, angular green branches just before the three-lobed leaves unfurl. Dense thickets often provide impenetrable cover and nesting sites for songbirds while serving as the primary commercial rootstock across global citrus orchards.