Search found 178 matches

by Plazbo
Sat Aug 01, 2020 10:24 pm
Forum: Rose Hybridizers Association Forum
Topic: Cercospora
Replies: 12
Views: 1200

Re: Cercospora

I have Many Happy Returns, it spots here not super bad but nothing special either. It can produce healthier seedlings than itself, some seem near completely spot free here but often some other issue for my conditions (ie seedling failure in extreme heat). It's probably worth someone in a more temper...
by Plazbo
Mon Jul 27, 2020 6:50 pm
Forum: Rose Hybridizers Association Forum
Topic: All A'Twitter x Yatkan
Replies: 34
Views: 2261

Re: All A'Twitter x Yatkan

I don't seem to have downy mildew here, although I'm not sure I know what it looks like. A lot like BS. Just usually more dark purple or brown based, not as neat (any shape, very irregular where blackspot is loosely spot shaped) and leaves don't typically yellow the same way as BS. Also tends to st...
by Plazbo
Mon Jul 27, 2020 1:03 am
Forum: Rose Hybridizers Association Forum
Topic: Rebloomers genes
Replies: 20
Views: 1250

Re: Rebloomers genes

Paul Guerts E2506 sort of fits that
https://www.helpmefind.com/rose/l.php?l=2.74408.0

Based on posts he made back in 2015/2016 on these forums that was the only one that repeated, he did go on to breed it with others rugosa and rugosa hybrids (like schneezwerg and metis) but no info on those results.
by Plazbo
Sat Jul 25, 2020 12:11 am
Forum: Rose Hybridizers Association Forum
Topic: Rebloomers genes
Replies: 20
Views: 1250

Re: Rebloomers genes

So, yeah, there is something different in the repeat from rugosa roses and the repeat from china roses. I tend to agree despite some older posts on these forums suggesting they are complimentary. Calocarpa (rug x china) has been a once bloomer for me, it may still be establishing itself but hasn't ...
by Plazbo
Sun Jul 19, 2020 8:18 pm
Forum: Rose Hybridizers Association Forum
Topic: pictures Martin Frobisher Seedling
Replies: 29
Views: 1369

Re: pictures Martin Frobisher Seedling

Re blackspot variants, maybe this was the thread

viewtopic.php?f=2&t=56480
by Plazbo
Thu Jul 16, 2020 6:20 pm
Forum: Rose Hybridizers Association Forum
Topic: pictures Martin Frobisher Seedling
Replies: 29
Views: 1369

Re: pictures Martin Frobisher Seedling

Warren's TB seedlings are healthy, clearly it's not as problematic in getting healthy seedlings from as implied, like most things though location likely plays a role. I mean you find Schneezwerg 'one of the most disease resistant Rugosas to work with' yet here it's one of the worst, around 75% infec...
by Plazbo
Wed Jul 15, 2020 7:42 pm
Forum: Rose Hybridizers Association Forum
Topic: pictures Martin Frobisher Seedling
Replies: 29
Views: 1369

Re: pictures Martin Frobisher Seedling

TB is being used by Warren, so sooner or later likely new TB derived plants will be on the European market so claims of obsoletion should be taken as opinion rather than fact.
by Plazbo
Fri Jun 12, 2020 10:05 pm
Forum: Rose Hybridizers Association Forum
Topic: Are Roxburghii flowers supposed to look like this?
Replies: 8
Views: 523

Re: Are Roxburghii flowers supposed to look like this?

No, like the above it looks more multiflora based.
The foliage is very wrong for roxburghii
by Plazbo
Thu Jun 11, 2020 8:22 pm
Forum: Rose Hybridizers Association Forum
Topic: Are centifolia roses sterile
Replies: 3
Views: 227

Re: Are centifolia roses sterile

Picky and difficult from most accounts. I think heat may be a factor. I had Crested Moss set seed (some are germinating at the moment) this past season. It was hot and I really threw a lot of pollen at it (often pollinated each bloom 3 times a day for several days...seemed like less effort that look...
by Plazbo
Tue Jun 09, 2020 9:10 pm
Forum: Rose Hybridizers Association Forum
Topic: hardiest reblooming diploid?
Replies: 47
Views: 2818

Re: hardiest reblooming diploid?

Although it makes me wonder if there is some difference in different plants of the same cultivar? Or is climate causing the difference? Or soil? Probably all of the above. Just as an example, Crested Moss set seed here (after digging for pollen in the first bloom it seemed more hassle than it was w...
by Plazbo
Fri Jun 05, 2020 9:06 pm
Forum: Rose Hybridizers Association Forum
Topic: Alternate source for repeat bloom
Replies: 28
Views: 2008

Re: Alternate source for repeat bloom

The Angel Wing seeds are likely to vary from sources and country due to being a seed strain, the parent plants are going to be different for everyone harvesting seed so experiences will vary. I grew out around 5grams/0.03oz towards the end of last year here, the vast majority were singles, some appe...
by Plazbo
Mon May 18, 2020 11:11 pm
Forum: Rose Hybridizers Association Forum
Topic: Yellow blend rugosa hybrid
Replies: 22
Views: 1367

Re: Yellow blend rugosa hybrid

The cross was Brite Eyes x Above and Beyond. It is one of the few juvenile bloomers I got out of well over 100 seedlings. I think these are real crosses because so far as I can see, Brite Eyes OP gives many more repeat bloomers thought I can't say for sure that all are. On a slight tangent because ...
by Plazbo
Sun May 17, 2020 11:53 pm
Forum: Rose Hybridizers Association Forum
Topic: Multiflora Rose review
Replies: 6
Views: 672

Re: Multiflora Rose review

Maybe if it is just providing the root system of a grafted plant there may be some exception??? Not being from the USA and so not really needing to know such things....that would be such a giant oversight given potential suckering or the grafted plant dying resulting in the rootstock taking off. Ha...
by Plazbo
Sun May 17, 2020 9:54 pm
Forum: Rose Hybridizers Association Forum
Topic: Yellow blend rugosa hybrid
Replies: 22
Views: 1367

Re: Yellow blend rugosa hybrid

'Nyveldt's White' may be classified as a Rugosa but that's a stretch since at the most it's 25% Rosa rugosa. In my opinion only a rose cultivar having at least 50% Rosa rugosa in its parentage can be classified as a Rugosa. It could be closer to 50% if none of the cinnamomea chromosomes were passed...
by Plazbo
Mon May 11, 2020 2:03 am
Forum: Rose Hybridizers Association Forum
Topic: 'Commander Gillette' X "3/4 Native"
Replies: 32
Views: 2223

Re: 'Commander Gillette' X "3/4 Native"

Murphy's law - single pink! That made me think of what the seed parent of 3/4 native looked like given Fragrant Cloud, then noticed it was bred by Tom so secret stalked his blog. Not single but pink (warm pink, but pink). I wonder if selfing may have strengthened the warmer colour, then again MR1 (...
by Plazbo
Wed May 06, 2020 7:29 pm
Forum: Rose Hybridizers Association Forum
Topic: Cläre Grammerstorf x Prairie Peace
Replies: 12
Views: 989

Re: Cläre Grammerstorf x Prairie Peace

What's the size of the plant so far, I think I see a gate/fence below it in one of the pictures on HMF....although I suppose with PP being a parent it could be quite big.
by Plazbo
Mon May 04, 2020 11:43 pm
Forum: Rose Hybridizers Association Forum
Topic: Alternate source for repeat bloom
Replies: 28
Views: 2008

Re: Alternate source for repeat bloom

As I reread it today it brought an answer, sort of, to something I was wondering about, how we get at least some plants that repeat bloom when crossing Rugosa with China, although not most? Part of that is going to be down to which Rugosa is used, many of the Rugosa's we currently use are known hyb...
by Plazbo
Sat May 02, 2020 9:02 pm
Forum: Rose Hybridizers Association Forum
Topic: Alternate source for repeat bloom
Replies: 28
Views: 2008

Re: Alternate source for repeat bloom

But that (overview) brought a question to mind: If Rugosa has a functional copy, unlike China, than how is it able to repeat if it ought to be suppressing the repeat bloom? Also, is this true of others such as Autumn Damask? Possibly another gene results in some sort of disruption to the KSN gene w...
by Plazbo
Fri May 01, 2020 3:47 am
Forum: Rose Hybridizers Association Forum
Topic: Sure they improve, but how much, realistically?
Replies: 15
Views: 987

Re: Sure they improve, but how much, realistically?

I don't know. I think your conditions in Cal differ enough from here despite similar daylight/long summers/heat. Sydney is straight up acid soil, the whole region is largely a flood plain protected by dams...but for centuries/millennia beforehand large run off from the forest mountains into largely ...
by Plazbo
Thu Apr 30, 2020 7:54 pm
Forum: Rose Hybridizers Association Forum
Topic: Sure they improve, but how much, realistically?
Replies: 15
Views: 987

Re: Sure they improve, but how much, realistically?

Agree with the above just from a different perspective. So often the things praised on here (so...north america-ish) are not so great here in Australia. There's a lot of posts with praise for Carefree Beauty...I can't relate, it's not horrible but it's not a stand out health wise compared to the ave...