Rose Hybridizers Association Forum

Hi Guys, Very interesting subject. I have evolved a different process for making rooted cuttings. I built a 4 meters by 2 meters chamber with builders sand and heating cable in the sand floor. I use peat pellets to root my cuttings, and like Stefan, I use cuttings with 2 to 3 eyes per cutting. Some ...

What are the benefits collecting and growing open pollinated near species hybrid seeds?
chuckp

Thanks Kim, I do from time to time get stems that sprout roots, but winter here on the Eastern Prairies is 5 months long. I just don't have room in the house to care for them. These rose stems are not treated for bugs or fungus before I bring them in. I want to make sure I'm not allowing the bugs li...

I got this idea from fellow RHA member Doug Wild, and it works. I put damp builder's sand in a plant pot a bury the stems in the sand with the lower leaves removed as you would for cut stems in a vase of water. Place the pot in a clear plastic bag, and place in a bright well lit spot, away from dire...

Hi everyone,
I see on the net many references to using vinegar to acidify potting soil for blueberries.
Has anyone try this with roses, and what were the results?
chuckp

Thanks for your comments Dane. It's hard to believe that almost 20 years have passed since I discovered this rose. I think its important for folks breeding roses for cold climates, not to be too quick to dispose of seedlings. Let mother nature point the way. Geo. Van OP-01 stands about 10 inches wit...

Hi Rob,
Here are some seedlings from Geo.van-op-01 crosses. This seedling is fertile both ways.
Chuckp

Hi everyone,
One of the things I envy of rosarians that live in warmer climes is their ability to grow rose standards.
What would have to be done/created to standard material that can tolerate -35 to 40 deg. Celsius?
chuckp

Hi everyone, thought this is too good to keep to myself. I've written quite a bit on storing seeds in the freezer. This is 13 years since I put 2006 seeds in the freezer. Took "Royal Edward x Love" seeds out and stratified them. Of 132 seeds, 35 seeds have germinated one month into the three month p...

Hi Moongoose 72

Welcome, you will find here some very knowledgeable, kind and helpful folks here.
You gave no reference as to what zone you live in and what are your breeding objects.
chuckp

Hi David,
I don't see "Twinkling Lights" listed on HMF. Can you tell us more about this rose?
chuckp

[attachment=0]Screenshot_20190819-221338_Gallery.jpg[/attachment]I used a few of my micro-minis in hybridizing.
chuckp

Hi Josh, I looked at your list, many of of the roses you chose I've tired from time to time. In my zone 3 climate. Tender roses are essentially expensive annuals. I'm lucky to get them survive 3 winters. Maybe it's something I have to learn to master yet. George Vancouver would offer a lot of winter...

Hi Josh, Greetings from Manitoba, in Canada. I am where you are 20 years ago. You didn't say anything about the geography of the area you are working in. What is the USDA climate zone? What kind of soil you are working with? What is the rainfall amounts, and in what season? and finally, do you plan ...

Hi Karl,
We know and understand the effect of temperature,and soil on the growth and reproductive life of plants.
What role does altitude and latitude play in their flourishing?
chuckp

Hi Karl, This quite an article. It is going to take me some time to digest it. Off hand, I can think of one rose that fits this bill. Therese Bugnet does not get very large in my garden. The blooms are sparse, and it seldom sets hips with applied pollen or set OP seeds. From what I have read on the ...

HI guys,
Joe, this cross rugosa x glauca is the reverse of the cross "Carmenetta" made by Isabella Preston. I've put Carmenetta
pollen on Canadian shrub roses and got fertile F2 seedlings. Is your hybrid seedling fertile?
chuckp

Doing some work on shallot breeding. Read Heney A. Jones "Onions and their Allies"
Can anyone point me to some recent research?
chuckp

Hi Paul, Thanks for pointing out my spelling mistake. You are correct, I meant "pressure" when I said "presser" dah None of the roses you mentioned repeat for me. Like you said some Spins do throw out a few blooms in the fall. To hold out for a yellow rose that repeats in zone 2 might not in the bes...

[quote="Paul G. Olsen" Rob, Since I know that 'Bill Reid' (semi-double yellow) will kill out in a Zone 2 climate, I checked HMF and I see it's rated 3b. That is likely accurate. The first person to develop a semi-hardy, disease resistant, yellow rose having good repeat bloom for a Zone 2 climate is ...