Search found 366 matches

by david zlesak
Wed Jul 02, 2014 7:08 pm
Forum: Rose Hybridizers Association Forum
Topic: Tesselaar Plants today announced the introduction of a brand
Replies: 28
Views: 3344

Re: Tesselaar Plants today announced the introduction of a b

I've been hoping to see the Sweet Spot roses in garden centers this spring, but haven't here in MN. Have others been able to find them? What are your thoughts and experiences so far with them?
by david zlesak
Sat Jun 28, 2014 6:17 pm
Forum: Rose Hybridizers Association Forum
Topic: Carefree Celebration
Replies: 3
Views: 553

Re: Carefree Celebration

Carefree Celebration is the father of Rainbow Knock Out and was introduced after its offspring. I counted its chromosomes and it is triploid. Thanks Julie for the encouragement to try to use it as a parent. I haven't tried it as I thought of its low fertility. It sure is beautiful!!! I love the maro...
by david zlesak
Sat Jun 21, 2014 9:47 am
Forum: Rose Hybridizers Association Forum
Topic: Update from Minnesota
Replies: 10
Views: 1482

Re: Update from Minnesota

THank you Henry!! That's very interesting. I don't have a wide perspective of the range of forms of both species. I'll have to go to the U of MN library and download that article when I get a chance. Hopefully they'll have some pictures. The R. beg. and R. laxa I have seem very different for leaf si...
by david zlesak
Fri Jun 20, 2014 1:45 pm
Forum: Rose Hybridizers Association Forum
Topic: Update from Minnesota
Replies: 10
Views: 1482

Re: Update from Minnesota

The R. beg. I got and shared as suckers and seedlings was from Paul Olsen if I remember correctly in 2007 or 2008 and from the Devonian Botanical Garden.
by david zlesak
Wed Jun 11, 2014 10:45 am
Forum: Rose Hybridizers Association Forum
Topic: Do OGR's get blackspot?
Replies: 14
Views: 1638

Re: Do OGR's get blackspot?

Hi Don! I emailed you the excel file.
by david zlesak
Wed Jun 11, 2014 10:43 am
Forum: Rose Hybridizers Association Forum
Topic: Do OGR's get blackspot?
Replies: 14
Views: 1638

Re: Do OGR's get blackspot?

When I tried to open the file now, much of the right side of the document is cut off... I tried a number of things- making it two separate files for each page, etc. and it still cut off margins. Argh! That's too bad we cannot attach word or excel files. Anyways, you can find it in the Summer 2004 RH...
by david zlesak
Wed Jun 11, 2014 10:27 am
Forum: Rose Hybridizers Association Forum
Topic: Do OGR's get blackspot?
Replies: 14
Views: 1638

Re: Do OGR's get blackspot?

Hi Don, Years ago I surveyed roses at the MN Landscape Arb for disease incidence and it was in the newsletter. I couldn't attach the excel file, but was able to convert it to a jpeg and attach it. I have some other disease surveys from UMore Park I think, but am not sure if I entered the data or if ...
by david zlesak
Wed Jun 11, 2014 10:10 am
Forum: Rose Hybridizers Association Forum
Topic: Do OGR's get blackspot?
Replies: 14
Views: 1638

Re: Do OGR's get blackspot?

Hi Don! We used 'Charles de Mills' in some of our black spot research. It was susceptible. We nicknamed the type of black spot we see on some of these OGRs with Gallica in them especially as sheet blackspot. The black color continues over the leaf and the spots grow together. The fungus can emit eth...
by david zlesak
Thu May 29, 2014 8:53 am
Forum: Rose Hybridizers Association Forum
Topic: A couple of hybrid thornless wichuranas
Replies: 7
Views: 996

Re: A couple of hybrid thornless wichuranas

These are beautiful!! What a great idea to develop some new lines out of R. wichurana!! It seems to be such an important parent for contributing health and those beautiful glossy leaves.
by david zlesak
Tue May 27, 2014 8:42 am
Forum: Rose Hybridizers Association Forum
Topic: Two Descendants of Summer Wine
Replies: 5
Views: 994

Re: Two Descendants of Summer Wine

Hi John!!

Are you having it trialed/introduced with a nursery? It is spectacular!!!!! I love the warm colors blended together against that dark foliage!
by david zlesak
Mon May 26, 2014 7:44 pm
Forum: Rose Hybridizers Association Forum
Topic: Congratulations to Robert Rippetoe!
Replies: 9
Views: 1595

Re: Congratulations to Robert Rippetoe!

Congratulations Robert!!! That is wonderful!!!
by david zlesak
Sun May 25, 2014 12:10 am
Forum: Rose Hybridizers Association Forum
Topic: Large-flowered climber rose plant named 'ZLEEltonStrack'
Replies: 16
Views: 2162

Re: Large-flowered climber rose plant named 'ZLEEltonStrack'

Thank you everyone for your kind comments. It is very male fertile, but tends to not like to accept pollen from other roses easily. I have some offspring of it. Most are like it in blooming habit, but ~1/6 with repeaters can repeat well. Crossing it with more cane tender roses can quickly dilute the...
by david zlesak
Sat May 24, 2014 11:27 am
Forum: Rose Hybridizers Association Forum
Topic: Large-flowered climber rose plant named 'ZLEEltonStrack'
Replies: 16
Views: 2162

Re: Large-flowered climber rose plant named 'ZLEEltonStrack'

Hi Henry!!! Wow, you are on top of things!! I just got the patent in the mail yesterday. Elton Strack was my rose breeding mentor and a founding member of RHA. As a 13 year old I read an article about William Radler's rose breeding hobby in the Milwaukee Journal and thought breeding plants sounded l...
by david zlesak
Thu May 15, 2014 4:57 pm
Forum: Rose Hybridizers Association Forum
Topic: American Rose Trials for Sustainability- Call to Enter
Replies: 12
Views: 1816

Re: American Rose Trials for Sustainability- Call to Enter

Hi Don and everyone! You have some good questions. We want to make A.R.T.S. as relevant and useful in the US marketplace and to the whole US rose community as possible. Everyone's suggestions are welcome. Don, there are many key differences between A.R.T.S. and AARS that opens opportunity for RHA me...
by david zlesak
Mon May 12, 2014 10:17 am
Forum: Rose Hybridizers Association Forum
Topic: American Rose Trials for Sustainability- Call to Enter
Replies: 12
Views: 1816

American Rose Trials for Sustainability- Call to Enter

Hi Everyone!! I would love to share with our RHA community the new American Rose Trials for Sustainability(R) (A.R.T.S.) program that I and several others have been a part of building the past few years. We are ready to accept entries for next year and have a collection of popular rose cultivars in ...
by david zlesak
Sun May 11, 2014 12:29 pm
Forum: Rose Hybridizers Association Forum
Topic: HT x Gallica Crosses
Replies: 5
Views: 984

Re: HT x Gallica Crosses

Agreed! Pursue your ideas and give it a try. Gallicas are in the background of Hybrid Perpetuals and therefore Hybrid Teas already as well. Sometimes the key to success in generating hybrids of divergent parents is to try different combinations of parents of the two groups to find those that are rel...
by david zlesak
Fri Apr 18, 2014 7:42 pm
Forum: Rose Hybridizers Association Forum
Topic: New Hulthemias seen outside...
Replies: 21
Views: 3854

Re: New Hulthemias seen outside...

Wow, that's fascinating Kim it is a huge climber. Here because it dies to the ground it regrows typically to about knee high.
by david zlesak
Fri Apr 18, 2014 10:30 am
Forum: Rose Hybridizers Association Forum
Topic: New Hulthemias seen outside...
Replies: 21
Views: 3854

Re: New Hulthemias seen outside...

Wow Jim!!! They are Gorgeous!!!! I can imagine these seedlings of yours being polyantha-like with D.E. I sure love polys and D.E. is pretty healthy here. I hope you get some great cultivars out of this direction Jim!!! Maybe some will be compact enough to be entered into the AOE trials as minis :0).
by david zlesak
Sat Apr 12, 2014 10:10 am
Forum: Rose Hybridizers Association Forum
Topic: Is there an association of municipal landscapers?
Replies: 3
Views: 819

Re: Is there an association of municipal landscapers?

Parks and Rec is the best one I'm aware of. Earth-Kind was featured in it a year or two ago. It covers broader topics than the design, but maintenance and other associated issues like working with people and the public. Interestingly, American Nurseryman magazine has a strong landscaper base of subs...
by david zlesak
Sun Apr 06, 2014 9:41 am
Forum: Rose Hybridizers Association Forum
Topic: These Two
Replies: 2
Views: 889

Re: These Two

Hi David! Nyveldt's White is a beautiful rose. It repeat blooms and is very rugosa like in habit, foliage, and hip characteristics. It is like a larger flowered variant of Rosa rugosa alba with lighter green foliage. It is very fertile producing lots of seeds in its hips. I collected op seeds of it ...