Search found 90 matches

by dgermeys
Sat Feb 15, 2020 6:07 pm
Forum: Rose Hybridizers Association Forum
Topic: How common is this?
Replies: 8
Views: 804

Re: How common is this?

Do you know the roses 'Little Pet' and 'Félicité-Perpétue'? The last one is a climber, the first one is a mutation from it and and a mini rose, Félicité-Perpétue is only blooming once, while "Little Pet" is flowering all the time. Most of the dwarf roses flower continuously... So there are a few pos...
by dgermeys
Wed Feb 05, 2020 5:02 pm
Forum: Rose Hybridizers Association Forum
Topic: Rosa Helenae Hybrida Off Spring Success in NAmerican Cold Zones?es?
Replies: 12
Views: 396

Re: Rosa Helenae Hybrida Off Spring Success in NAmerican Cold Zones?es?

Overhere in Belgium we have 'Red Robin" and 'Pink Robin', two roses by Louis Lens, both R. helenae x Robin Hood. I don't know how hardy they actually are.
by dgermeys
Wed Feb 05, 2020 4:47 pm
Forum: Rose Hybridizers Association Forum
Topic: Petite Knock Out Rose - AVOID
Replies: 31
Views: 1272

Re: Petite Knock Out Rose - AVOID

I don't know if this has been posted on the board before, but here is a very interesting analysis of the relationship between U.S. plant patents and rose breeding from the perspective of economists. It seems that the primary benefits have been to large corporations, and that the process may not hav...
by dgermeys
Wed Dec 18, 2019 3:09 am
Forum: Rose Hybridizers Association Forum
Topic: The 15th International Heritage Conference
Replies: 1
Views: 110

The 15th International Heritage Conference

The 15th International Heritage Conference will take place in Belgium, June 2020.
More information: https://www.rosabelgica2020.com/
by dgermeys
Sat Dec 14, 2019 7:33 pm
Forum: Rose Hybridizers Association Forum
Topic: R. carolina video
Replies: 17
Views: 517

Re: R. carolina video

Thx! Nice videos!
by dgermeys
Wed Dec 11, 2019 5:10 pm
Forum: Rose Hybridizers Association Forum
Topic: Freedom Gardens is a source for rare roses
Replies: 6
Views: 806

Re: Freedom Gardens is a source for rare roses

Hi David! Looking forward to the results of your research! If I remember well, the explorer series have not necessary all rosa kordesii as there ancestors, but they do have Max Graf as their ancestor somewhere... Could it be that Svejda obtained another rose, simular to rosa kordesii, but not "the" ...
by dgermeys
Wed Jun 26, 2019 12:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Cercospora
Replies: 8
Views: 913

Re: Cercospora

Does anyone know of botanical roses that don't get it, or only get it a little bit?
by dgermeys
Wed Jun 05, 2019 12:36 pm
Forum: Rose Hybridizers Association Forum
Topic: Fritz Nobis
Replies: 5
Views: 546

Re: Fritz Nobis

Confirmed, the rose is John Grooms, introduced 1993 by Peter Beales, parentage is Fritz Nobis x Compassion. I've put in a comment with HMF - hopefully they will update the parentage info. Thank you for the information! I bought F.N. this year and the rose is growing well and seems very healthy. Pro...
by dgermeys
Thu Feb 28, 2019 5:48 pm
Forum: Rose Hybridizers Association Forum
Topic: The volume of Acta Horticulturae with rose articles from the meetings in Angers France is out!!
Replies: 3
Views: 225

Re: The volume of Acta Horticulturae with rose articles from the meetings in Angers France is out!!

Seems really interesting David! I am interested in one article in particular, about the CS: "Resistance of garden roses to cercospora leaf spot" The abstract states that 6 cultivars showed no cercospora symptoms. Does anyone has access to the full article. It would be really nice to know which 6 cul...
by dgermeys
Fri Feb 22, 2019 5:07 pm
Forum: Rose Hybridizers Association Forum
Topic: Fritz Nobis
Replies: 5
Views: 546

Re: Fritz Nobis

anyone who had success using this rose?
by dgermeys
Fri Feb 22, 2019 4:21 pm
Forum: Rose Hybridizers Association Forum
Topic: R. moyesii 'Highdownensis'
Replies: 36
Views: 4270

Re: R. moyesii 'Highdownensis'

Hi guys, I finally found the time to read the article "Dr. Hurst's Rose Classification" by Eileen Whitehead Erlanson. The article seems to confirm Hurst was right. Maybe he didn't classify all roses into the right categorie, but he did an amazing job classifying all those traits and linking to the s...
by dgermeys
Tue Jan 22, 2019 12:34 pm
Forum: Rose Hybridizers Association Forum
Topic: R. moyesii 'Highdownensis'
Replies: 36
Views: 4270

Re: R. moyesii 'Highdownensis'

Keep in mind that Hurst's genetic concepts are archaic relative to the state of the art and that that Earlinson disproved his septet hypothesis eighty years ago. Don (or anyone else), can you give me the paper or title of this paper where Earlinson proves the septet theory to be wrong for roses? Th...
by dgermeys
Fri Dec 07, 2018 7:07 am
Forum: Rose Hybridizers Association Forum
Topic: Rebloom
Replies: 23
Views: 910

Rebloom

Quite often we read in catalogues terms as continual flowering, repeat flowering, reblooming, and even 'occasional' flowers later in the season. How is this variety of different types of rebloom explained? Especially the 'occasional rebloom later in the season'? We have all learned that the rebloomi...
by dgermeys
Sun Aug 05, 2018 5:49 am
Forum: Rose Hybridizers Association Forum
Topic: Cercospora
Replies: 8
Views: 913

Re: Cercospora

My rosa carolina seems to get it, but just a little
by dgermeys
Thu Aug 02, 2018 4:33 pm
Forum: Rose Hybridizers Association Forum
Topic: Rootstocks and Flower Color
Replies: 24
Views: 2001

Re: Rootstocks and Flower Color

I tend to agree with Kim. Also, because if we only have own root roses, the heritage roses, who not always perform well on their own roots will be banished entirely from the market. Don't understand me wrong, I have nothing against roses on their own roots, unless they use a lot of environmentaly da...
by dgermeys
Thu Aug 02, 2018 2:03 pm
Forum: Rose Hybridizers Association Forum
Topic: Cercospora
Replies: 8
Views: 913

Cercospora

Does anyone has experience with roses that are resistant to cercospora? I know there have been discussions about this disease but maybe an update on this information could be interesting.
Or if you know species that are resistant, that would also be interesting!
by dgermeys
Thu Aug 02, 2018 7:14 am
Forum: Rose Hybridizers Association Forum
Topic: Disease resistance
Replies: 4
Views: 352

Disease resistance

I was wondering about disease resistance. Can roses become disistant after a while to any fungus? Is it possible that they get it when they are young but trying to fight it and somehow remember the disease and rhen after a second or rhird attack they are less infected or evwn immune ro that disease?...
by dgermeys
Thu Aug 02, 2018 6:55 am
Forum: Rose Hybridizers Association Forum
Topic: Rootstocks and Flower Color
Replies: 24
Views: 2001

Re: Rootstocks and Flower Color

Very intetesting topic! I have even heard that different rootstocks can have an influence on the scent. Makes scense to me. A multiflora rootsrock will not go as deep as a rubiginosa rootstock for example. So that will also have its influence if nutrients are deep in the soil. I believe there should...
by dgermeys
Mon Jun 04, 2018 3:36 am
Forum: Rose Hybridizers Association Forum
Topic: My First Bloom
Replies: 7
Views: 755

Re: My First Bloom

Love the colors in this flower!
by dgermeys
Wed May 30, 2018 4:31 pm
Forum: Rose Hybridizers Association Forum
Topic: First Blooms for 2015
Replies: 28
Views: 3951

Re: First Blooms for 2015

The pollination that produced this seedling was made May 25, 2009. It flowered for the first time this year (2015) on May 31. The pollen parent is an F1 moyesii, the seed parent is Persian Peach. Hi Don, that's a very interesting cross! How did it evolve? Have you other crosses with moyessi as poll...