Cold-hardy citrus
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Cold-hardy citrus is citrus with increased frost tolerance and which may be cultivated far beyond traditional citrus growing regions. Citrus species and citrus hybrids typically described as cold-hard
Ichang papeda, a citrus variety known for its cold tolerance
Kumquat
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Kumquats, sometimes spelled cumquat, are a group of small, angiosperm, fruit-bearing trees in the family Rutaceae. The edible fruit closely resembles the orange in color, texture, and anatomy, but is
Cold-hardy citrus
…withstand wintertime temperatures below −5 to −10 °C (23 to 14 °F). Cold-hardy citrus may be generally accepted 'true' species (e.g. Satsuma mandarin, kumquat) or hybrids (e.g. citrange) involving various other citrus species. All citrus fruits are technically edible, though some have bitter flavors often…
Kumquat from Spain
Kumquat 0245
Illustration by Walter Hood Fitch
Kumquat flower