Cold-hardy citrus
Citrus species and citrus hybrids typically described as cold-hardy generally display an ability to 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 regarded as unpleasant, and this variability is also seen in cold-hardy citrus fruits.Those listed as "inedible fresh" or "semi-edible" can (like all citrus) be cooked to make marmalade.Varieties of true citrus considered cold-hardy, ordered from most to least hardy: Interspecific hybrid varieties considered cold-hardy, ordered from most to least hardy:
Ichang papedacitrusspeciescitrus hybridsSatsuma mandarinkumquatcitrangemarmaladeTrifoliate orangeCitrus reticulataDesert limeSatsumaCitrus × sinensisCitrangequatCitrumeloCitrus × paradisiKabosuShuangjuan (Ichang lemon)SudachiOrangequatRangpur limeCalamondinChinottoCitrus rootstockAustralian and Papuan wild limes groupCitronKaffir limeKumquats groupMandarin orangeMangshanyeganMountain citronPomeloRyukyu mandarinhybridsGrapefruitOrangesweet orangecultivarsAlemowAmanatsuAssam lemonBergamot orangeBizzarriaBitter orangeBlood limeBlood orangeByeonggyulBiasongCam sànhCara Cara navel orangeClementineCoorg orangeDaidaiDekoponEncoreFairchild tangerineFlorentine citronForbidden fruitGinger limeHarukaHassakuHebesuHeen naranHyuganatsuImperial lemonIndian wild orangeIyokanJabaraJaffa orangeJamaican tangeloKabbadKaji NemuKakadu limeKanpeiKawachi bankanKey limeKhasi papedaKinkoji unshiuKinnowKishu mikanKiyomiKobayashi mikanKomikanLarahaLemonade fruitLimón de PicaMandeloMandoraMelanesian papedaMelogoldMeyer lemonMicranthaMidknight Valencia OrangeMurcottMyrtle-leaved orange treeNagpur orangeNasnaranNew Zealand grapefruitŌgonkanOrangelo/ChironjaOroblancoPalestinian sweet limePersian limePixie mandarinPompiaPonderosa lemonPonkanRangpurReikouRhobs el ArsaRough lemonSamuyaoSanbokanSetokaShangjuanShonan GoldSmith Red ValenciaSweet lemonSweet limettaTangeloTangerineTangorTsunonozomiValencia orangeVariegated pink lemonVolkamer lemon