Hardwood cuttings in zone 3 (-40 to -30F) Canada

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Margit Schowalter
Posts: 148
Joined: Wed Dec 31, 1969 7:00 pm
Location: Alberta, Canada

Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73335Post Margit Schowalter
Mon Oct 11, 2021 2:04 pm

I am looking for some suggestions or techniques other cold climate growers have used to propagate roses by hardwood cuttings. Sticking directly into the ground in the fall is not successful here (Alberta) due to deep frost penetration. Thank you in advance for your ideas.

rikuhelin1
Posts: 417
Joined: Sat Jul 16, 2016 7:56 pm

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73425Post rikuhelin1
Sat Oct 30, 2021 1:36 pm

I am assuming you want them outside but protected when cold comes down?

Not tried that as not had success with hardwood even inside, and normal softwood cuttings are a low take challenge for me.

However l am sure that civil engineering approaches might allow reduction in frost penetration but seems like a lot of work and cost. Things come to mind are concrete insulation blankets (small scale), styrofoam (thick) all covered with hay or peat moss etc and that tarped to retain soil heat for as long as possible. Sticks within small packed cloche.

None of these give sun. Just off the wall and not field proven by me.
Riku

rikuhelin1
Posts: 417
Joined: Sat Jul 16, 2016 7:56 pm

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73426Post rikuhelin1
Sat Oct 30, 2021 1:45 pm

Notice some Scandinavians dig earth boxes into ground to protect tender roses - still you would need a small heat source to keep frost at bay. Seem to have box structure enclosure … and mesh to keep rodents at bay. A version of a cold root cellar to me.
Riku

rikuhelin1
Posts: 417
Joined: Sat Jul 16, 2016 7:56 pm

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73427Post rikuhelin1
Sat Oct 30, 2021 3:50 pm

Also got European 18-19th century manure hotbox concept (used in “cold frame” to grow pineapples) to look at - decomposition keeps atmosphere and l assume ground warm - have to change … but don't think close neighbours would appreciate and tough to get if in city.
Riku


rikuhelin1
Posts: 417
Joined: Sat Jul 16, 2016 7:56 pm

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73429Post rikuhelin1
Sat Oct 30, 2021 8:41 pm

If “inside is meant” … Frazer Valley Roses puts outs what l deem is an excellent how to video
… taught me a lot that did not know about doing hardwood cuttings (eg no leaves no older than 1 year, 6-8 months yawn time etc) … ignoring its BC and warm

… they stick inside in an above ground bed but in green house tent … seems tall inside pot achieves same as in ground …

Riku

Margit Schowalter
Posts: 148
Joined: Wed Dec 31, 1969 7:00 pm
Location: Alberta, Canada

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73430Post Margit Schowalter
Sat Oct 30, 2021 10:17 pm

Thanks Rick

joverom
Posts: 104
Joined: Thu Dec 15, 2011 9:51 am

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73441Post joverom
Mon Nov 01, 2021 2:26 pm

Hi Margit,

Here in Zone 3B northern Wisconsin am just about to pot up the cuttings I took 2 weeks ago. They have been in the dark in a drawer for the last two weeks to undergo callusing. This message was timely as it reminded me to check on them--I usually allow them 2-3 weeks to form calluses. These cuttings will now be planted in seed starting trays, covered with a high dome, placed under lights, and allowed to spend roughly the next two months forming roots. Some roses do better than others (species roses do not do well with this method) but I usually get 50%-70% to root. I typed up the instructions years ago based on a methods used by a couple other RHA members in warmer climates but this time of year is the only time I have available to babysit cuttings--mainly to multiply my own plants. I am happy to share it with you if you can send me a private message with your email address.

Julie Overom

Margit Schowalter
Posts: 148
Joined: Wed Dec 31, 1969 7:00 pm
Location: Alberta, Canada

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73443Post Margit Schowalter
Tue Nov 02, 2021 11:22 am

Thank you Julie.

philip_la
Posts: 1098
Joined: Thu Dec 15, 2011 10:28 pm

Re: Hardwood cuttings in zone 3 (-40 to -30F) Canada

Post: # 73447Post philip_la
Tue Nov 02, 2021 9:04 pm

It has been years since I lived in a colder climate, but a bin filled with humid sand in a garage or other cool place that doesn't freeze hard, with the ripe cuttings taken as soon as foliage starts to drop, used to work. I've also done "burritoes" in the fridge with the ripe, pencil-sized cuttings taken about the same time in fall. The plants, in theory, will have stored up plenty of carbs for winter that will help them push new growth, but a modicum of "bloom builder" fertilizer (with phosphates for roots) never seemed to hurt.

Your issues might occur if they break a little too early...
Philip F.
Zone 8 / Sunset Zn 30 (Austin, TX -- formerly New Orleans, LA)

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