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When do your hybridization efforts start each year? How early in the growing season do you start?
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4
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39
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May 19, 2026
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First germinations of 2026!
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81
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1602
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May 19, 2026
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Embryos roots swelling before cotyledons greening and planting questions
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0
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20
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May 19, 2026
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Clarification on bloom type
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11
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230
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May 18, 2026
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World peace opportunity
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3
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109
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May 17, 2026
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Six-petalled rosa carolina
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2
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66
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May 16, 2026
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My crosses (Germinating in 2026)!
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5
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291
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May 15, 2026
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Identifing a climbing rose
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1
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66
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May 15, 2026
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Rosa persica in the US
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2
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80
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May 15, 2026
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RHA membership portal is temporarily offline
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9
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182
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May 12, 2026
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Is this likely Cane Scale or just Nothing?
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5
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97
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May 12, 2026
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Pests & the Heebie-jeebies:
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9
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113
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May 11, 2026
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Advice on encouraging young rose plant basal shoots
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14
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172
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May 11, 2026
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Old roses and petals
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16
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244
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May 11, 2026
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OP Mutabilis seedlings
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51
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1471
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May 11, 2026
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Selecting mother plants
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14
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739
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May 10, 2026
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Need help IDing this rose
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3
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112
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May 9, 2026
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Poor start to season-black anthers
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8
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98
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May 8, 2026
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Souvenir de Trélazé R. rugosa
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3
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81
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May 5, 2026
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‘Rugelda’ as a parent…
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6
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198
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May 5, 2026
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Portland roses as mothers
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141
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3278
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May 4, 2026
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Erskine Hybrid Rugosa x Moss Madame de la Roche Lambert
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3
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144
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May 4, 2026
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Victorian Memory (Isabella Skinner) or Champagne Arches Experience?
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2
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544
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May 4, 2026
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mutabilis as a parent?
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35
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2055
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May 3, 2026
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Which rose variety do these leaves belong to?
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3
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85
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May 3, 2026
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Breeding roses for very strong fragrance
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31
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800
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May 1, 2026
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One pollen grain of 1/2 DNA only per one seed?
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11
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177
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May 1, 2026
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Show-and-tell from last season?
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24
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3674
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May 1, 2026
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Please advise/link interesting topics
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0
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40
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April 29, 2026
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Earth Angel/Herzogin Christiana
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39
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2197
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April 28, 2026
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