Roses for Hybridizing

Blotch (Hulthemia) If Hulthemia hulthemosa (syn. H. persica is a species of rose then is it the most primitive one, barely able to hybridize with any other rose. All existing roses with the Hulthemia blotch descend from one of only two H. persica hybrids, named Tigris and Euphrates. Today many roses display the Blotch but they are still in need of refinement. Other Fragrance Founder Hybrids Remontancy (Rebloom) Cold Hardy Roses Disease Resistance Scented Foliage

Topic	Replies	Views	Activity
About the Roses for Hybridizing category Roses for Hybridizing	0	408	August 26, 2022
Teas and noisettes worth breeding with Roses for Hybridizing	7	125	November 7, 2025
Rugosa Seedling Worthy of Attention Cold Hardy Roses	11	183	November 4, 2025
OP Mutabilis seedlings Roses for Hybridizing	47	1264	November 2, 2025
Basye's Purple Rose - Autumn color Other	8	194	October 16, 2025
'Harison's Yellow' syn. R. x Harisonii surprises with late bloom Other	2	163	October 1, 2025
Barbier ramblers as parents Remontancy (Rebloom) rosa-wichuraiana	28	670	September 28, 2025
OP Abraham Darby Roses for Hybridizing first-blossom	14	703	September 24, 2025
‘Rugelda’ as a parent… Roses for Hybridizing rugosa-hybrids	2	72	September 23, 2025
OP ‘Lambert Closse’ Roses for Hybridizing hardy-yellow	6	242	September 18, 2025
First bud spotted TODAY! Remontancy (Rebloom)	6	163	September 15, 2025
Victorian Memory (Isabella Skinner) or Champagne Arches Experience? Cold Hardy Roses	1	470	September 13, 2025
Hybrid Rugosa Roses Cold Hardy Roses	8	112	September 13, 2025
OP “Outta the Blue” seedlings Fragrance	8	314	September 11, 2025
Rosa primula, foliage scent passed via pollen or as mother? Scented Foliage	5	89	September 7, 2025
2025 Pollinations, a list… Roses for Hybridizing	9	245	September 6, 2025
(L83 x Pikkalan Kaunotar) x Above and Beyond Cold Hardy Roses	4	163	September 5, 2025
Golden Wings OP Roses for Hybridizing spinosissima	13	511	September 5, 2025
Small-flowered roses Other	2	84	September 4, 2025
Open or Selfs? Roses for Hybridizing asma , sharifa , beetles , honeybee , curl , japanese-beetles , successful-pollinations , seeds-produced , polyploid , pollen-viability , floaters , diploid-polyanthas , heritage-x , chris-mauchline , bess	15	1041	September 3, 2025
Repeat/Remontant Lessons Learned vs Growing Climate Conditions? Cold Hardy Roses	1	120	September 2, 2025
Easy culls…are easy? Remontancy (Rebloom)	3	285	August 25, 2025
Carefree Beauty Graduation day into mansplain Big League Cold Hardy Roses	0	113	August 22, 2025
Ole, Sven, and Lena Roses for Hybridizing lena , sven , marie-pavie-x-rbland , chlorosis , wild-dancer , shade-tolerant , rooting-cuttings , microbes , little-water , leaf-spot , half-sibling , gender , alkalinity , whisper , vanilla , twin , smoothie , sharifa , rb , pilgrim , monica , mary-rose , lullaby , cineraire , cardinal-hume , bukavu , asma , angel-wings	48	6150	August 11, 2025
OP ‘Tiffany’ FAIL Roses for Hybridizing achenes , fungus , pericarp	0	59	August 11, 2025
Best rugosas for juvenile bloom? Roses for Hybridizing first-blossom , rugosa , juvenile	33	1143	August 2, 2025
Bimodal centromeres in pentaploid dogroses shed light on their unique meiosis Other	2	58	July 28, 2025
Unknown in rose breeding Remontancy (Rebloom)	0	115	July 26, 2025
Merveille x Porsliini Kaunotar - nature didn’t terminate Remontancy (Rebloom)	0	108	July 23, 2025
ARS Webinar on Blackspot research from Dr. David Zlesak, 7/26 Disease Resistance	0	58	July 20, 2025