The Conestoga series are the most cold-hardy hybrid citrus. Developed by Kumin from the Tropical Fruit Forum. More details can be found in his post 'F2 citrange winter hardiness trial'
This is a seedling of Conestoga 026, not a grafted plant. Most Conestoga 026 seeds are nucellar, which means they produce a genetic clone of the mother plant. I believe seedlings will help push the cold hardiness of citrus, because if an unusually cold winter causes die back, they can resprout from the roots.
Started from seed in the spring of 2026 and grown in 7" root pruning tree pot. They are around 1 foot tall.
*Cannot ship to AZ, CA, FL, HI, LA, TX*
HARDINESS: -11°F and reliably hardy to zone 6b, and can be grown into zone 6a
PARENTAGE: Citrus sinensis 'Ruby' × Poncirus trifoliata F2
ZYGOTIC SEEDLINGS: low
OTHER NOTES: brix 11, low bitter flavor
*Cannot ship to AZ, CA, FL, HI, LA, TX*
