Last February I was sent some OP Kathleen seeds from West Belgium, the seed parent was growing in a garden surrounded by OGR , Austins and multiple climbing roses. The germination was great giving me six variations of Kathleen offspring. Growth and foliage types vary greatly as with the bloom types. Types 1 and 2 have a most impressive repeat cycle, blooms are replaced at an astounding rate.
This seed was bought into Australia so I could create new floribunda types. Fertility has not been an issue as all six are fertile both as seed and pollen parents. Types 1 and 5 show incredible seed fertility as hips form with out any problems.
One type is interesting, Type 2 which shows Wichuriana influence in bloom and foliage type.
Really cool. Assuming that’s the Pemberton Musk Kathleen (there are four Kathleens on HMF).
I’ll preempt David Mears by requestion you cross type 2 with a bright yellow rose.
Assuming diploids? Could you cross them with R. xanthina?
Maybe also with crossed with some OP Lena seedlings… (be patient with me; the Lena hips are still on my kitchen table)
It is the Pemberton musk Joe. With crossing it with yellow, already done. I pollinated it with Maréchal Niel. There is not any reason it would not accept Xanthina pollen, Types 1 and 2 would be the go . The cultivar Lena looks like it has a bit of multiflora hyb in it , good possibilities there, golly it would set huge bloom bracts.
Thanks Joe, yes anything with a Yellow cross would be great, the outcome I am unsure of, but if it brings yellow into the garden, it is my thought yellow is not totally understood within the rose family, I wish I knew that answer.
This little seedling of Kathleen has turned out to be quite nice. It probably will be classified as a Polyantha (Kathleen Seedling TYPE 3). This pic was taken after the day had reached 108 F.