Tree Roses

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We tried some tree roses from Thompsom and Morgan two years ago. They weren't expensive, only slightly more than that of one ceramic pot for the four.


This was their second year last year. They didn't do very well. I dumped them and replaced them at the end of the year with four bare root roses from David Austin, which should do well this year.

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In context, the term 'tree rose' may mean different things, but most often it refers to a standard-grafted rose. All the rose shown in this thread are cultivars that are also available more typically as shrub roses. What makes them 'tree roses' is how they are grafted.
A grafted shrub rose consists of two cultivars the desired flowering scion and the vigorous rootstock. To make a rose be a standard or 'tree' rose, a third cultivar is introduced and two grafts are performed. The third cultivar is called the 'interstem' and it provides the long main stem or 'trunk' to the standard-grafted 'tree rose. The lower end of the interstem is grafted to the rootstock and the upper end to the scion. The climbing multiflora Rosa x 'De la Grifferaie' is often used for the interstem.
 

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