tree peony

David Ryle
Wed, 23 May 2007 21:54:47 PDT
Propagating tree peonies is commercially done using what is known as a 
triangular cleft graft. The method is not too difficult to learn, but the 
degree of success varies enormously from cultivar to cultivar (High Noon, a 
yellow cultivar has a notorious rep for poor take, less than 30%, hence the 
usually high price asked for it.).
 Basically a piece of herbaceous peony root approximately two adult fingers 
in thickness virtually any cultivar will do, although the most common in 
order of preference is Felix Crousse, Crinkled White and recently, Sarah 
Bernhart. I tend to think the reason the latter has been adopted for the 
process in the last six years, is the glut of this cultivar available in 
  The soil is washed off and the roots dipped in fungicide and allowed to 
dry for two to three days. The top of the root is then cut so it has a flat 
top then in one side of the root a triangular wedge is cut out of the root 
3/16" wide at the top tapering down to a point with the overall length of 
the wound being approximately 3/4" and 3/16" deep overall.
 The cultivar to be propagated, from know on referred to as the scion, will 
have short branchlets approximately 21/2" long removed and the opposite end 
to the bud will be cut to a taper that corresponds with the cut made in the 
understock and the two will be mated together.
 Provided they fit the scion and understock will be either wrapped in 
grafting latex(common today), or grafting wax is poured over the union(less 
common today), this is done toprevent the union from prematurely drying out.
 The grafts are then potted up into 6" square pots in a warm 
greenhouse(60F), and if the graft takes, the bud on the scion will break 
into growth and the understock should root out as normal. The plants are 
then grown out for the remainder of the year and allowed to become dormant 
in the autumn.The process is normally carried out in mid-winter.
 The following year they are offered for sale, or, if you're not selling 
them, offered to grateful friends who will automatically elevate you to 
legendary status in your local gardening community!!!!
 Phew, it takes longer to type the method than it actually does to perform 
it. Hope this information helps,good luck. By the way Chinese peonies are 
typically easier to propagate than Japanese, but the flowers are nowhere 
near as large.

David Ryle
----- Original Message ----- 
From: "Marie-Paule" <>
Cc: "pbs" <>
Sent: Monday, May 21, 2007 4:03 AM
Subject: [pbs] tree peony

> Hello
> My neighbour has a beautiful tree peony (big white flowers with a red 
> troat and very fragrant) dos anyone know how I can multiply the peony, is 
> it by taking a bit branch? Or can it from his seed? If it is with the seed 
> of the peony, do you have then the same white flowers?
> kindly Regards,
> Marie-Paule
> Belgium
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