This is a public-interest archive. Personal data is pseudonymized and retained under GDPR Article 89.

Re: creating new cultivars


> Has anyone tried this?  Assuming there's no patent on one's roses, could
one
> use, say, a species rugosa and one other hardy type of rose to cross and
expect to
> produce a hardy rose?

A patented plant may not be reproduced by any asexual means.  That is, you
may not root or graft a patented rose.  Hybridize your little heart out
with any patented rose you may so desire. And, yes, you should get a hardy
offspring if both the parents are hardy.

>Does one need a greenhouse if in the Midwest and does
> anyone know when it's best to start this project and how long it takes to
fruition?

Start the project when the roses you wish to cross are flowering.

Most garden roses (Hybrid Teas, Minis, some Old Garden Roses) bloom the
first year from seed.  Don't rely on this first bloom when judging the
beauty of the flower; it's best to wait until the bush is actually mature,
though the color should be true enough.

Rose seed benefits from stratification, and the best way to do it is to
throw their little butts out into the freezing cold for an entire Winter. 
Come Spring, they'll start germinating for you.  I have done this cold
treatment with a refrigerator, but it was a nuisance and the results were
mixed.  I got frustrated and tossed the seed trays outdoors, planning to
discard them in the Spring (I'm kinda' lazy).  When I went to tidy up and
discard the seed tray, I was greeted with a whole slew of new little
dependents.  I've done it that way ever since.

keith romanczyk, WNY, zone 5

bb



Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index