Hardy Citrus 'Changsha x English Large' David Geiger so the tree is grown

so the tree is grown for ornament and history rather than harvest

was raised by Peter Moore at Longstock Park Nursery in England

and far more interesting

The clone was discovered at the San Antonio Botanic Garden and is generally taken to be the selection known as 'Pumpkin'

meaning Cliftonia monophylla stands alone as the only species in the whole lineage

Hardy Citrus 'Changsha x English Large' David Geiger so the tree is grownThis is a cold hardy citrus hybrid bred to carry oranges into gardens too cold for ordinary citrus, a cross between the trifoliate orange, Poncirus trifoliata, in the large flowered form called 'English Large', and the notably hardy Changsha mandarin, Citrus reticulata. Both parents are prized for cold tolerance, and stacking the two produces a small, thorny tree that shrugs off freezes that would kill a true orange. The cross matches the well known