In zone 7b (and I imagine any zones warmer) Mutabilis tends to the larger size if not pruned, 5-6 feet wide and closer to 8-10 feet tall.

Roger Phillips & Martyn Rix in their publication "Roses" (Macmillan, 1988) state that 'Mutabilis' first came to the attention of botanists when it was given to Swiss botanist Henri Correvon of Geneva by Prince Gilberto Borromeo.

It is possible that the rose first appeared in the garden at Isola Bella in 1896 or before then. Writing in the "Revue Horticole" in 1934 (p.60), Henri Correvon states that the rose was given to him by Prince Borromeo 40 years previously. Correvon later saw the same rose growing in Milan but nobody knew the name of it, so he named it very aptly 'Mutabilis', even though there had been a Sempervirens variety of this name previously. (Source: The Graham Stuart Thomas Rose Book, Frances Lincoln Ltd, 2004, p.127).

The actual date of introduction to Geneva by Correvon was probably around 1932.

'Mutabilis' is a parent of 'Masquerade'.

Still flowering the first of november, not harmed by frost or rain! The colours at cool weather are mostly very light.