All dormant apple trees need a specific phone number of " chill hours"–periods with temperature below 45 degree Fahrenheit – before their spring growth begin . Most apple varieties need from 500 to 1,000 scarey hours each year . A small number of apple cultivar , however , can get by with fewer than 500 , says Kathie Carter of the UC Riverside Cooperative Extension ’s Botany Sciences Department . These are the Malus pumila varieties worthy for hot mood .

Anna

Developed in Israel , " Anna " needs 300 shivery hours . Its previous May to June yield go up to two month when refrigerated . To prepare yield , Anna ask cross - pollenation from " Golden Dorsett " or " TropicSweet " trees . The tree ’s crisp , red - green fruit is slightly more sweet than acidulent , according to the University of Florida IFAS Extension . Average weight for its 2.5 - column inch , oblong apple is 7 oz . " Anna " is Florida ’s best - sell apple cultivar .

Dorsett Golden

A Bahamian apple cultivar , " Dorsett Golden " sets yield with only 250 chilling hours . The University of Arizona Extension paint a picture it may want even less . extremely resistant to browning , its crimson - striped , chickenhearted or greenish fruit average 5.3 oz . Like " Anna , " its apples are ready for harvesting in belated May or June . " Dorsett Golden " is an upright , intermediate summit tree diagram . It involve cross - pollination from " TropicSweet " or " Anna . "

TropicSweet

" TropicSweet " is a spreading tree diagram with very fresh , carmine - and - green apples of 7 oz . Like " Dorsett Golden , " they ’re extremely resistant to browning . Developed in Florida , this patent cultivar needs 300 chilling hours to produce May and June fruit . The crisp apples store from six to eight weeks in the icebox . fussy - pollenate this tree with " Anna " or " Golden Dorsett . "

Ein Shemer

" Ein Shemer , " an Israeli cultivar , perform well even in the downcast California and Arizona deserts . The University of Arizona Cooperative Extension estimates its chilling requisite at as little as 100 hour . " Ein Shemer " has red - and - lily-livered , medium - textured fresh fruit averaging a piddling over 6 oz . This tree will cross - pollinate " Anna . "

Early Dawn

With a chilling requirement of 250 hours , " former Dawn " is a disease - resistive apple cultivar that performs well in California ’s coastal areas . Its August - ripening , ruddy and white-livered apples average about 8 oz . They have crisp , fragrant flesh good for snacking and preparation , allot to the Urban Permaculture Institute .

Michal

Another Israeli cultivar , " Michal " needs 425 chilling hours . Producing yield in just three year , Michal has unfluctuating , juicy yellow apples shade with orange and violent . Their tone is similar to that of " Jonathan " apples , notes the Urban Permaculture Institute . It becomes sweeter for up to two weeks at elbow room temperature . The medium - sized fruit is quick for pick in June and July .

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