Cei mai rezistenti hibrizi sunt cei realizati de cercetatorul William Ackerman din Washington /USA . Sporadic se gasesc si la pepiniere din Europa.
Varietati care infloresc la inceput de sezon – din octombrie pana-n decembrie :
'Ashton's Ballet' C.japonica 'Shikishima' x C.oleifera 'Plain Jane' . -23 C.
'Ashton's Cameo' C.hybrid 'Winter's Charm' x C.oleifera 'Plain Jane' . -23 C.
'Ashton's Pink' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -23 C.
'Ashton's Prelude' C.oleifera 'Plain Jane' x C.sasanqua 'Setsusan'. -23 C.
'Ashton's Pride' C.oleifera 'Plain Jane' x C.sasanqua 'Santozaki'. -26 C.
'Ashton's Snow' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -26 C.
'Ashton's Supreme' [C.hiemalis 'Bill Wylam' x C.oleifera 'Plain Jane'] x [C.sasanqua 'Narumi-gata' x C.oleifera 'Plain Jane']. -27 C.
'Elaine Lee' C.japonica 'Mrs. Bertha Harmes' x C.oleifera 'Plain Jane' . -23 C.
'Fairweather Favorite' C.japonica 'Frost Queen' x C.oleifera 'Plain Jane' . -26 C.
'Frost Prince' C.hiemalis 'Shishi-gashira' x C.oleifera 'Plain Jane' . -20 C.
'Frost Princess' C.hiemalis 'Bill Wylam' x C.oleifera 'Plain Jane' . -20 C.
'Londontowne Blush' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -23 C.
'Polar Ice' 'Frost Princess' x C.oleifera 'Plain Jane' . -23 C.
'Snow Flurry' C.oleifera 'Plain Jane' x 'Frost Princess' . -23 C.
'Winter's Beauty' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -26 C.
'Winter's Charm' C.sasanqua 'Takara-wase' x C.oleifera 'Plain Jane' . -23 C.
'Winter' s Cupid' -- C.oleifera 'Plain Jane' x [C.sasanqua 'Narumi-gata' x C.hiemalis > 'Shishi-gashira']. -26 C.
'Winter's Dancer' -- C.hiemalis 'Bill Wylam' x C.oleifera 'Plain Jane' . -23 C.
'Winter's Darling' -- C.hiemalis 'Shishi-gashira' x C.oleifera 'Lu Shan Snow' . -23 C.
'Winter's Dream' -- C.hiemalis 'Peach Puff' x C.oleifera 'Plain Jane' . -23 C.
'Winter's Fancy' -- C.hiemalis 'Bill Wylam' x [C.hiemalis 'Shishi-gashira' x C.oleifera 'Plain Jane' ]. -20 C.
'Winter's Fire' -- 'Frost Prince' x C.vernalis 'Takarazuka'. -20 C.
'Winter's Hope' -- C.oleifera 'Lu Shan Snow' x 'Frost Princess'. -23 C.
'Winter's Interlude' -- C.oleifera 'Plain Jane' x C. sinensis Rosea ("Pink Tea"). -26 C.
'Winter's Joy' -- [C.sasanqua 'Narumi-gata' x C.hiemalis 'Shishi-gashira'] x C.oleifera 'Plain Jane'. -23 C.
'Winter's Moonlight' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane'. -26 C.
'Winter's Peony' -- C.oleifera 'Plain Jane' x [C.sasanqua 'Narumi-gata' x C.hiemalis 'Shishi-gashira']. -20 C.
'Winter's Red Rider' -- C.hiemalis 'Shishi-gashira' x C.oleifera 'Lu Shan Snow' . -23 C.
'Winter's Rose' -- C.oleifera 'Plain Jane' x C.hiemalis 'Otome'. -26 C.
'Winter's Snowman' -- [C.sasanqua 'Narumi-gata' x C.hiemalis 'Shishi-gashira'] x -23 C.
'Winter' s Star' -- C.oleifera 'Lu Shan Snow' x C.hiemalis 'Showa-no-sakae'. -20 C.
'Winter's Sunset' -- C.oleifera 'Plain Jane' x 'Frost Princess'. -20 C.
'Winter's Toughie' -- C.oleifera 'Plain Jane' x C.sasanqua 'Jean May'. -26 C.
'Winter's Waterlily' -- C.oleifera 'Plain Jane' x C.sasanqua 'Mine-no-yuki'. Cold hardy to -26 C.
Varietati care infloresc la mijloc si sfarsit de sezon - din decembrie pana in mai :
'Arctic Dawn' -- C.x williamsii 'November Pink' x C.oleifera 'Lu Shan Snow' . -20 C.
'Betty Sette' -- C.japonica 'Frost Queen' x C.japonica 'Variety Z'. -23 C.
'Cream Puff' -- C.japonica 'Frost Queen' x C.japonica 'White Butterfly'. -20 C.
'Fire 'N Ice' - C.japonica 'Tricolor (Siebold)' x C.oleifera 'Plain Jane' . -20 C.
'Frost Queen' -20 C.
'Ice Follies' C.x williamsii 'November Pink' x C.oleifera 'Lu Shan Snow' . -20 C.
'Jerry Hill' C.japonica 'Frost Queen' x C.japonica 'Variety Z'. -23 C.
'Kuro Delight' -- C.japonica 'Kuro Tsubaki' x C.japonica 'Variety Z'. -26 C.
'Londontown' -- C.japonica 'Bertha A. Harmes' x C.oleifera 'Plain Jane' . -20 C.
'Maroon Mist' --C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -20 C.
'Pink Icicle' -- C.x williamsii 'November Pink' x C.oleifera 'Lu Shan Snow' . -20 C.
'Red Fellow' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -20 C.
'Spring Cardinal' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -23 C.
'Spring Circus' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -23 C.
'Spring Frill' -- C.oleifera 'Plain Jane' x C.vernalis 'Egao'. -23 C.
Varietati care infloresc la inceput de sezon – din octombrie pana-n decembrie :
'Ashton's Ballet' C.japonica 'Shikishima' x C.oleifera 'Plain Jane' . -23 C.
'Ashton's Cameo' C.hybrid 'Winter's Charm' x C.oleifera 'Plain Jane' . -23 C.
'Ashton's Pink' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -23 C.
'Ashton's Prelude' C.oleifera 'Plain Jane' x C.sasanqua 'Setsusan'. -23 C.
'Ashton's Pride' C.oleifera 'Plain Jane' x C.sasanqua 'Santozaki'. -26 C.
'Ashton's Snow' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -26 C.
'Ashton's Supreme' [C.hiemalis 'Bill Wylam' x C.oleifera 'Plain Jane'] x [C.sasanqua 'Narumi-gata' x C.oleifera 'Plain Jane']. -27 C.
'Elaine Lee' C.japonica 'Mrs. Bertha Harmes' x C.oleifera 'Plain Jane' . -23 C.
'Fairweather Favorite' C.japonica 'Frost Queen' x C.oleifera 'Plain Jane' . -26 C.
'Frost Prince' C.hiemalis 'Shishi-gashira' x C.oleifera 'Plain Jane' . -20 C.
'Frost Princess' C.hiemalis 'Bill Wylam' x C.oleifera 'Plain Jane' . -20 C.
'Londontowne Blush' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -23 C.
'Polar Ice' 'Frost Princess' x C.oleifera 'Plain Jane' . -23 C.
'Snow Flurry' C.oleifera 'Plain Jane' x 'Frost Princess' . -23 C.
'Winter's Beauty' C.japonica 'Billie McCaskill' x C.oleifera 'Plain Jane' . -26 C.
'Winter's Charm' C.sasanqua 'Takara-wase' x C.oleifera 'Plain Jane' . -23 C.
'Winter' s Cupid' -- C.oleifera 'Plain Jane' x [C.sasanqua 'Narumi-gata' x C.hiemalis > 'Shishi-gashira']. -26 C.
'Winter's Dancer' -- C.hiemalis 'Bill Wylam' x C.oleifera 'Plain Jane' . -23 C.
'Winter's Darling' -- C.hiemalis 'Shishi-gashira' x C.oleifera 'Lu Shan Snow' . -23 C.
'Winter's Dream' -- C.hiemalis 'Peach Puff' x C.oleifera 'Plain Jane' . -23 C.
'Winter's Fancy' -- C.hiemalis 'Bill Wylam' x [C.hiemalis 'Shishi-gashira' x C.oleifera 'Plain Jane' ]. -20 C.
'Winter's Fire' -- 'Frost Prince' x C.vernalis 'Takarazuka'. -20 C.
'Winter's Hope' -- C.oleifera 'Lu Shan Snow' x 'Frost Princess'. -23 C.
'Winter's Interlude' -- C.oleifera 'Plain Jane' x C. sinensis Rosea ("Pink Tea"). -26 C.
'Winter's Joy' -- [C.sasanqua 'Narumi-gata' x C.hiemalis 'Shishi-gashira'] x C.oleifera 'Plain Jane'. -23 C.
'Winter's Moonlight' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane'. -26 C.
'Winter's Peony' -- C.oleifera 'Plain Jane' x [C.sasanqua 'Narumi-gata' x C.hiemalis 'Shishi-gashira']. -20 C.
'Winter's Red Rider' -- C.hiemalis 'Shishi-gashira' x C.oleifera 'Lu Shan Snow' . -23 C.
'Winter's Rose' -- C.oleifera 'Plain Jane' x C.hiemalis 'Otome'. -26 C.
'Winter's Snowman' -- [C.sasanqua 'Narumi-gata' x C.hiemalis 'Shishi-gashira'] x -23 C.
'Winter' s Star' -- C.oleifera 'Lu Shan Snow' x C.hiemalis 'Showa-no-sakae'. -20 C.
'Winter's Sunset' -- C.oleifera 'Plain Jane' x 'Frost Princess'. -20 C.
'Winter's Toughie' -- C.oleifera 'Plain Jane' x C.sasanqua 'Jean May'. -26 C.
'Winter's Waterlily' -- C.oleifera 'Plain Jane' x C.sasanqua 'Mine-no-yuki'. Cold hardy to -26 C.
Varietati care infloresc la mijloc si sfarsit de sezon - din decembrie pana in mai :
'Arctic Dawn' -- C.x williamsii 'November Pink' x C.oleifera 'Lu Shan Snow' . -20 C.
'Betty Sette' -- C.japonica 'Frost Queen' x C.japonica 'Variety Z'. -23 C.
'Cream Puff' -- C.japonica 'Frost Queen' x C.japonica 'White Butterfly'. -20 C.
'Fire 'N Ice' - C.japonica 'Tricolor (Siebold)' x C.oleifera 'Plain Jane' . -20 C.
'Frost Queen' -20 C.
'Ice Follies' C.x williamsii 'November Pink' x C.oleifera 'Lu Shan Snow' . -20 C.
'Jerry Hill' C.japonica 'Frost Queen' x C.japonica 'Variety Z'. -23 C.
'Kuro Delight' -- C.japonica 'Kuro Tsubaki' x C.japonica 'Variety Z'. -26 C.
'Londontown' -- C.japonica 'Bertha A. Harmes' x C.oleifera 'Plain Jane' . -20 C.
'Maroon Mist' --C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -20 C.
'Pink Icicle' -- C.x williamsii 'November Pink' x C.oleifera 'Lu Shan Snow' . -20 C.
'Red Fellow' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -20 C.
'Spring Cardinal' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -23 C.
'Spring Circus' -- C.japonica 'Tricolor Red (Siebold)' x C.oleifera 'Plain Jane' . -23 C.
'Spring Frill' -- C.oleifera 'Plain Jane' x C.vernalis 'Egao'. -23 C.