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RE: Propagating Cotinus

Name        : Cotinus coggygria

Cultivar    : Royal Purple

Cutting Type: softwood, terminal, 8", from current growth, 4 leaves per
              cutting
Age-Stage   : [
When taken  : End of May, June
Medium      : sand
Auxin       : Hormodin #2
Structure   : mist
Bottom Heat : outdoor
% Rooting   : >90%
Time to root: 5 weeks
Care        : hardening off by reducing misting frequency
Location    : Hamburg, Iowa
Reference   : Sjulin, J.F. 1958. Proc. IPPS 8:72.  ]

Name        : Cotinus coggygria purpureus

Cultivar    : [

Cutting Type: softwood with removal of soft tip
Age-Stage   : [
When taken  : June 18
Medium      : sharp sand
Auxin       : IBA 1.0% in talc or Hormodin #3
Structure   : plastic case
Bottom Heat : Bottom Heat
% Rooting   : 70%
Time to root: 12 days
Care        : hardening-off with shade under plastic case
Location    : Cambridge, Mass.
Reference   : Coggesholl, R.C. 1953. Proc. IPPS 3:46-48.  ]

> ----------
> From: 	Mary R. Henry[SMTP:mshen@macconnect.com]
> Sent: 	Wednesday, April 08, 1998 6:29 AM
> To: 	woodyplants@mallorn.com
> Subject: 	Re: Propagating Cotinus
> 
> Lorraine J. Wallace wrote:
> > 
> > A friend has a 35 year old cotinus (cultivar unknown)with
> particularly good color
> > which she would like to share but has been unsuccessful with
> cuttings. I understand
> > they can be tricky. Has anyone had success propagating this plant?
> What tips can
> > she try?
> > 
> > Lorraine Wallace
> > 
> According to Dirr's Reference Manual of Woody Plant Propagation (my
> bible on the subject) it roots readily (80-90%) when using softwood
> cuttings in June. The trick seems to be that the cuttings must be
> overwintered before they are ever transplanted or there are serious
> losses (70%). It says further that they will root without hormone, but
> have only single, stringy roots, so 8000-10000 IBA talc was the best
> used as it produces better rooting. Rooting cuttings singly in nursery
> pots and overwintering in a cold frame would probably be the best way
> for her to go depending on her USDA zone.
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