Rosa davidii Hybrids

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Re: Rosa davidii Hybrids

Postby mwesson » Sun Apr 16, 2017 9:42 am

Very nice!

Mark
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Re: Rosa davidii Hybrids

Postby philip_la » Tue Apr 18, 2017 10:04 am

Very nice, Warren! Beautiful foliage. I find myself drawn to the single pink in the first set, and really like the Kordesii davidii as well. I gather it won't be recurrent, however? (In my climate, non-repeaters are often viewed as a waste of a ridiculously long growing season! ;-) )
Philip F.
[size=small][color=#669966]Zone 8 / Sunset Zn 30 (Austin, TX -- formerly New Orleans, LA)[/color][/size]
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Re: Rosa davidii Hybrids

Postby Rob Byrnes » Tue Apr 18, 2017 10:56 am

Tom,

I wanted to let you know that I used your rugosa x xanthina as the pollen parent and Lemon Splash as the female parent and got some seeds. They are stratifying now and I'm keeping my fingers crossed that I get germination.
Rob Byrnes

Historic Village of Roebling, NJ Zone 7a
On the left bank of the Delaware River
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Re: Rosa davidii Hybrids

Postby jbergeson » Tue Apr 18, 2017 12:26 pm

Do we know if R. davidii is a tetraploid or diploid?

My R. davidii survived its second winter to the tips here in Zone 3 Minnesota. It is suckering profusely, with thin greenish canes and not too many thorns. If it blooms this year I may have to try some pollen.
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Re: Rosa davidii Hybrids

Postby Rob Byrnes » Tue Apr 18, 2017 12:28 pm

jbergeson wrote:Do we know if R. davidii is a tetraploid or diploid?

My R. davidii survived its second winter to the tips here in Zone 3 Minnesota. It is suckering profusely, with thin greenish canes and not too many thorns. If it blooms this year I may have to try some pollen.



Joe,

It's great to learn that R. davidii is hardy to zone 3. I'll have to give this species a look.

Rob
Rob Byrnes

Historic Village of Roebling, NJ Zone 7a
On the left bank of the Delaware River
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Re: Rosa davidii Hybrids

Postby Rob Byrnes » Tue Apr 18, 2017 12:35 pm

Joe,

Do you have R. davidii or R. davidii elongata?

Rob
Rob Byrnes

Historic Village of Roebling, NJ Zone 7a
On the left bank of the Delaware River
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Re: Rosa davidii Hybrids

Postby jbergeson » Tue Apr 18, 2017 12:56 pm

Rob - I don't know. Got it from...some place in Oregon? Something Flower Farm?
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Re: Rosa davidii Hybrids

Postby Rob Byrnes » Tue Apr 18, 2017 3:35 pm

Forest Farm in Oregon. Thank you Joe!
Rob Byrnes

Historic Village of Roebling, NJ Zone 7a
On the left bank of the Delaware River
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Re: Rosa davidii Hybrids

Postby jriekstins » Wed Apr 19, 2017 3:02 pm

The Wendy x Altissimo crosses are lovely, but this kordesii x davidii (worth the 3 yr wait and then some) is beyond lovely. Simply gorgeous. I have had one Rosa foliolosa X Henry Hudson seedling bloom with a beautifully double, tons of bloom, (but pink) but it has been a very reticent bloomer since. Will need to get some wichuriana genetics in there. Does the red come from the davidii ? And is this a new bloom this past spring season or has it bloomed since that photo?
]Jackie, SoCal., zone 9b,coastal foothills
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Re: Rosa davidii Hybrids

Postby dgermeys » Wed Apr 19, 2017 3:58 pm

Warren wrote:This is a cross I did last year now in its 1st growth cycle. (Wendy X Altissimo) X R. davidii. Vigour and health are very good.


Love this rose Warren! Seems very healty. Do you you think it could be grown as a climber?
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Re: Rosa davidii Hybrids

Postby Warren » Wed Apr 19, 2017 6:11 pm

Hi Jr
Thank you for your comment. The red from the double comes from Kordes (Sympathie)
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Re: Rosa davidii Hybrids

Postby Warren » Wed Apr 19, 2017 6:13 pm

Hi Dane
From germination they grew 300cm (10ft) in their first year, I cut the tops out to keep them at a manageable height. If I had not pruned them down the height would have exceeded 500cm (15ft+).

cheers Warren
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