Continued from before:
I didn’t try R. arkansana as a female before this year and am excited to see hips forming on it from crosses to a wide array of modern roses. Hopefully there’ll be seeds inside and viable seedlings! THat one seedling also is setting hips well and hips are forming when it is used as a male.A friend had some R. arkansana plants she has worked with that were disease susceptible and she gave up on them. She also rarely uses the Morden series of roses in breeding too because they tend to be more disease susceptible in the Twin Cities than say the Explorer series. I wonder if up in the Northern prairies where it is drier if the R. arkansana just weren’t selected strongly for disease resistance. Maybe this one from Morris is a good selection because Morris isn’t as far into prairie land and the potential for higher humidities may have helped select for disease resistance in that population compared to some Canadian populations used. I am excited to see what next years seedlings will bring!
I’d love to learn about others experiences with R. arkansana.