Many ancient roses are naturally climbers, and several of them have been the source for most modern varieties of climbers through a programme of breeding. But in addition to that: the 'climbing' gene is dominant over the 'bush' gene - and therefore there is no great surprise when a seedling or 'sport' arises spontaneously that is much taller than its parent ('Iceberg' being a ready example). Heights vary but are typically in the range of 2-6m. Climbers produce stems that have a productive life of several years, becoming quite woody over time, and should selectively be pruned out to promote fresh growth. Climbing roses typically have large flowers that can be held either singly or in small groups, and although termed 'climbing' they lack the ability to cling to supports on their own and must be manually trained and tied over structures, such as arbours and pergolas (unlike natural climbers such as clematis or wisteria). Climbers produce more flowers when their stems are trained horizontally and tend to have large flowers that almost always rebloom. (Varieties include: 'Dublin Bay', and 'Iceberg').
For planting advice, see Planting Containerised Roses - RV Roger Ltd
For pruning advice, see A Guide to Pruning Roses - RV Roger Ltd
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