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A hybrid, intermediate in features between its parents T. platyphyllos and T. tomentosa.
Distribution Montenegro and other parts of SE Europe where the parents grow together
USDA Hardiness Zone 5
RHS Hardiness Rating H6
Tilia × haynaldiana was described by Simonkai in 1887 to describe natural hybrids between Tilia platyphyllos (Broad-leaved Lime) and T. tomentosa (Silver Lime) which occur rarely in parts of Europe where both species grow together, though the much later flowering of the Silver Lime would generally pose a barrier to cross-fertilisation (Pigott 2012). One such tree was recorded by Donald Pigott in 1986, in a wooded doline on karst near Kolasin in Montenegro (Pigott 2012). Cultivated specimens of T. × juranyana (often labelled T. tomentosa f. virescens) look very similar.
A tree labelled Tilia × haynaldiana in the late Maurice Mason’s garden at Beachamwell, Norfolk, was 14 × 0.53 m dbh in 2009; there are younger trees at Wakehurst Place and the Sir Harold Hillier Gardens. Also at the Sir Harold Hillier Gardens are two trees catalogued as hybrids of Tilia platyphyllos with T. tomentosa ‘Orbicularis’. The larger was 17 × 0.44 m dbh in 2017 (Tree Register 2018).