GRAFTING TREE PEONIES
We have handled tree peonies for a long time, buying from Europe, then from Japan when our European sources dried up. Japanese suppliers we found to be not too reliable in supply—and naming especially—so we decided to propagate them ourselves.
Surveying the stock available to us, we felt that only the best would do. Up to this time we bought what the supplier offered, often inferior varieties. European varieties, while being developed from the same source, are quite distinct from Asiatic varieties in that they are usually fully-double, large-flowered, often so heavy that the stems cannot carry the bloom which then is hidden by foliage.
Asiatic varieties, in contrast, are of semidouble to double types with stiffer stems which carry the flowers well above the foliage. There are exceptions to both rules of course.
Tree peonies (Paeonia suffruticosa) are usually propagated by grafting on well-branched roots of P. lactiflora, the herbaceous peony. Grafting commences toward the end of August.
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