Commercially available

• Blanche Unique
• Lactea
• Marie Louise (syn. White Provence)
• Mutabilis albissima
• R. centifolia alba
• Rosa centifolia alba synonym
• Rosa centifolia nivea
• Rosa centifolia var. extùs rubra
• Rosa centifolia var. mutabilis Pers.
• Rosa lactea multiplex
• Rosa unica
• Unica Alba
• Unique (centifolia, Grimwood 1775)
• Unique Blanche
• Unique de Provence (centifolia)
• Unique Provence
• White Cabbage
• White Provence

42 favorite votes.  
Average rating: EXCELLENT-.  

White, near white or white blend Centifolia.
Registration name: Unique Blanche (Centifolia)

Discovered by Daniel Grimwood (United Kingdom, 1775).
Introduced in Australia by Camden Park in 1843 as 'White Provence'.

Centifolia.  

White, deep pink outer petals.  Strong fragrance.  Average diameter 2.5".  Large, very double, button-eye, flat bloom form.  Once-blooming spring or summer.  

Bushy, lax.  Dark green foliage.  

Height: up to 5' (up to 150cm).  Width: up to 4' (up to 120cm).

USDA zone 4b through 9b.  Can be used for beds and borders or garden.  

Tetraploid

Some difference of opinion about origin, see References.
Also, Robert Buist uses the word "provins" for this sport of R. centifolia. Which can be confusing. Provins Roses are Gallicas. Provence Roses are Centifolias.
The term 'White Provins' / 'White Province' / 'White Provence' seems to have been attached to various roses over time. A white centifolia probably already existed before 1600 - see Rosa centifolia batavica alba
'Lactea' and 'Lactea multiplex' are possbly distinct roses.