Search found 259 matches

by pgeurts
Sun Apr 22, 2018 9:27 am
Forum: Rose Hybridizers Association Forum
Topic: new-hardy-rose-variety-was-16-years-making
Replies: 10
Views: 817

Re: new-hardy-rose-variety-was-16-years-making

Congratulations Julie!
I know how hard you worked for this. Breeding roses in Zone 3 is a real challenge, growing your seedlings in pots in the greenhouse and overwintering most of your plants in the basement or at a friend’s house.
by pgeurts
Sun Apr 15, 2018 9:05 am
Forum: Rose Hybridizers Association Forum
Topic: High Country wishlist
Replies: 13
Views: 853

Re: High Country wishlist

I should add that Agnes might be a good avenue towards a yellow Rugosa style rose. I never tried in any crosses so I can't say how it is as a parent. I grew Topaz Jewel and it was a bust. I never got seeds from TJ either as the seed parent or the pollen parent.
by pgeurts
Sun Apr 15, 2018 8:52 am
Forum: Rose Hybridizers Association Forum
Topic: High Country wishlist
Replies: 13
Views: 853

Re: High Country wishlist

I grew Schneezwerg for a number of years. You can tell it’s a hybrid, everything about it is smaller than a straight Rugosa, including the leaves, the flowers and hips, plus it has a more open growth habit. I had limited luck as the seed parent and a little better luck as the pollen parent, with lot...
by pgeurts
Sat Apr 14, 2018 12:20 pm
Forum: Rose Hybridizers Association Forum
Topic: High Country wishlist
Replies: 13
Views: 853

Re: High Country wishlist

I got my High Country Roses catalog the other day also. I wasn’t thinking of buying any roses this year but they had some roses I’ve thought about getting for a number of years though never have, so I broke down and ordered a few. I’ve grown a number of striped roses over the years but most have not...
by pgeurts
Fri Feb 09, 2018 11:17 am
Forum: Rose Hybridizers Association Forum
Topic: English Roses - finding good seed parents
Replies: 10
Views: 953

Re: English Roses - finding good seed parents

I have grown eight different Austin roses. I don’t spray my roses and the Austin’s ranged from below average resistance to quite susceptible to black spot. With two exceptions, the first being Mayflower which was supposed to have good disease resistance but turned out to be highly susceptible to cer...
by pgeurts
Fri Feb 09, 2018 9:49 am
Forum: Rose Hybridizers Association Forum
Topic: reds from KO/Home Run, etc...
Replies: 19
Views: 1407

Re: reds from KO/Home Run, etc...

I agree with Don on both the points he’s making. I and I’m sure most of us here do as well, find it a little disappointing when the lineage of a rose is not listed or when it is listed, the parent plant simply states that it’s the parent of the rose you just looked at with no other information about...
by pgeurts
Thu Feb 08, 2018 4:18 pm
Forum: Rose Hybridizers Association Forum
Topic: reds from KO/Home Run, etc...
Replies: 19
Views: 1407

Re: reds from KO/Home Run, etc...

What I see selling at the big retail boxes are mostly old varieties that the patents have expired, with a sprinkling of a few good sellers like Knock Out and the Drift series. Rarely do I see one or two newer varieties also. I think having won an award will definitely enhance a rose varieties’ chanc...
by pgeurts
Fri Jan 26, 2018 2:41 pm
Forum: Rose Hybridizers Association Forum
Topic: Heart's Design
Replies: 14
Views: 1111

Re: Heart's Design

Chuck, Dick Clark is red with yellow centers quickly fading to white. Being a grandifolia it's not winter hardy but it rebounds better than most. It also has good disease resistance for me. I've used it's pollen a couple times but didn't get many seedlings, though more to do with the the seed parent...
by pgeurts
Sat Jan 13, 2018 8:33 am
Forum: Rose Hybridizers Association Forum
Topic: EGS1 - growing & breeding experience
Replies: 7
Views: 727

Re: EGS1 - growing & breeding experience

It’s been a few years since I grew EGS1 but I don’t remember it having many hips. The only time I tried pollen on it none of the pollinations took. I used its pollen 6 times and got good seed set about half the time. So my experience is that it’s a better pollen parent than seed parent.
by pgeurts
Fri Jan 12, 2018 9:07 am
Forum: Rose Hybridizers Association Forum
Topic: EGS1 - growing & breeding experience
Replies: 7
Views: 727

Re: EGS1 - growing & breeding experience

I had EGS1 or 02-036-1 as Julie called it originally for about 5 years. It had average disease resistance being moderately susceptible to cercospora. It had good winter hardiness surviving mild winters but dyeing back to the snow line in harsher winters. I tried it as the seed parent once with Goldb...
by pgeurts
Tue Jan 09, 2018 12:22 pm
Forum: Rose Hybridizers Association Forum
Topic: cercospora?
Replies: 5
Views: 486

Re: cercospora?

I used to grow William Baffin and John Cabot. WB would defoliate completely by the end of the summer whereas JC had better resistance, but not immune. I used WB in a number of crosses mostly because it is quite hardy where I only used JC a few times. The seedlings of WB turned out to be quite suscep...
by pgeurts
Tue Dec 26, 2017 12:01 pm
Forum: Rose Hybridizers Association Forum
Topic: First Germination of the Winter
Replies: 20
Views: 2058

Re: First Germination of the Winter

Hi Rob, That’s great that you’ve been able to do some crosses with it and have some OP seeds as well. I hope back crossing it to R.glauca takes and you get some hybrid seedlings. I may get some blooms from mine this coming spring, it’s still pretty small but because it repeats I may get a few. Once ...
by pgeurts
Fri Dec 22, 2017 3:30 pm
Forum: Rose Hybridizers Association Forum
Topic: First Germination of the Winter
Replies: 20
Views: 2058

Re: First Germination of the Winter

Yeah, I think the offspring bloom even less than the mother did. My experience with crossing pink/magenta with yellow is the seedlings run the gamut in color. But I do have one seedling that is yellow using Kim’s 1-72-1hugonis pollen on a pink mother, so it can happen. Have you done any crosses with...
by pgeurts
Fri Dec 22, 2017 12:26 pm
Forum: Rose Hybridizers Association Forum
Topic: First Germination of the Winter
Replies: 20
Views: 2058

Re: First Germination of the Winter

Rob, Glad to see you have used the Rugotreat in a few crosses. It’ll be interesting to see what this seedling looks like. The mother was a sparse bloomer also and so were pretty much all of the seedlings I grew from it. I tried numerous crosses with the mother but it was always a crap shoot whether ...
by pgeurts
Wed Dec 20, 2017 8:50 am
Forum: Rose Hybridizers Association Forum
Topic: cold-hardy breeders
Replies: 11
Views: 1111

Re: cold-hardy breeders

Donald, While the Parkland roses generally have good flower and plant form, most were only crown hardy here except after a mild winter. They also tend to be quite susceptible to black spot and cerospora. I agree with Joe in that Prairie Joy is probably the best one, it is the only one I have left. I...
by pgeurts
Tue Dec 19, 2017 9:32 am
Forum: Rose Hybridizers Association Forum
Topic: R.glauca help?
Replies: 8
Views: 829

Re: R.glauca help?

Phillip, My feeling is that the percentage of repeat bloom in F2 seedlings in the cross you propose would be 0%. The reason being is because in the unbalanced meiosis of R.glauca there are two sets of chromosomes called univalent that do not pair up and are only passed along in the egg. While it has...
by pgeurts
Sun Dec 17, 2017 2:48 pm
Forum: Rose Hybridizers Association Forum
Topic: Cold hardiness of seeds as a predictor of cold hardiness
Replies: 15
Views: 855

Re: Cold hardiness of seeds as a predictor of cold hardiness

Donald, I remember you mentioning the good results you had with your frozen seeds before I tried my test. It gave me hope to get as good of results from my seeds, but that wasn't to be. You mention freezing the seeds at -35C, where most home freezers are at around -20C. Do you have a place to store ...
by pgeurts
Sun Dec 17, 2017 9:34 am
Forum: Rose Hybridizers Association Forum
Topic: Cold hardiness of seeds as a predictor of cold hardiness
Replies: 15
Views: 855

Re: Cold hardiness of seeds as a predictor of cold hardiness

Donald, I haven’t heard of any studies testing if the cold tolerance of mature plants is also expressed in the seeds. But I have read of people collecting seeds in the middle of winter that had success in germinating the seeds. This would make sense from a survival point of view that seeds left on t...
by pgeurts
Wed Dec 13, 2017 8:17 am
Forum: Rose Hybridizers Association Forum
Topic: R.glauca help?
Replies: 8
Views: 829

Re: R.glauca help?

Plazbo, There is disagreement even on this forum as to whether diploids are self-infertile. There is anecdotal evidence for and against. With R.glauca, your plant appears to be self-infertile where as my plant appeared to have been self-fertile. My suggestion is to freeze some pollen to use on R.gla...
by pgeurts
Tue Dec 12, 2017 1:49 pm
Forum: Rose Hybridizers Association Forum
Topic: R.glauca help?
Replies: 8
Views: 829

Re: R.glauca help?

It's possible it could be self-incompatibility is going on there, but if there were other plants in bloom nearby that wouldn’t matter. It may just be your plant isn’t very female fertile. Most species plants from a nursery are going to be grown from seed so there is going to be a lot variablitiy fro...