Flying Dragon (Hardy Citrus)

Poncirus trifoliata 'Flying Dragon' produces small, aromatic citrus fruit that can be used for marmalade, preserves, and flavouring, where its bold tartness and unique citrus notes really shine. While not typically eaten fresh, it’s a fun option for those interested in experimenting with hardy citrus and homemade preserves.

Beyond its edible potential, 'Flying Dragon' is valued for its exceptional cold hardiness (to around -20°C) and its important role as a dwarfing rootstock for citrus, helping keep grafted trees compact and more adaptable to cooler climates and container growing. It also makes a stunning ornamental, with dramatic twisted branches, strong thorns, and a naturally sculptural form, adding year-round interest.

Common names: Flying Dragon hardy orange, Contorted trifoliate orange, dwarf hardy citrus

Edible: Fruit (processed, not fresh)
Harvest timing: Late fall (October-November)

Scientific name: Poncirus trifoliata
Light requirements: Full sun 
Full-grown size: 6-10' tall x 6-10' wide' 
Hardiness: Zone 5 
Pollination: Self-fertile
Wildlife: Flowers attract pollinators and thorny branches provide shelter for birds.
Origin: Species from Northern China and Korea. Cultivar is a naturally occurring contorted selection of the species. 
Noteworthy: Extremely cold hardy for a citrus.