This is a bit of a mystery rose.
I saw it at Bunnings one year-2000? and bought it out of curiosity.
I have seen it nowhere since.
The buds and new flowers are actually lemon coloured before fading to white.
It has had maybe 5 or 6 blooms in total from the time I bought it.
I have uploaded a photo.

Excerpt from PBR registration;
Rosa banksiae
Banksia Rose
‘Powder Puff’
Application No: 1998/155 Accepted: 7 Sep 1998.
Applicant: Wallis’s Nurseries, Mosgiel, New Zealand.
Agent: Southern Advanced Plants Pty Ltd, Dromana VIC.

Characteristics Plant: habit climbing. Young shoot: anthocyanin colouration strong, hue of anthocyanin reddish brown to purple. Prickles: present, shape of lower side deep concave, short prickles absent or very few, long prickles few. Leaf: size medium, green colour medium, glossiness of upper side weak. Leaflet: cross section concave, undulation of margin absent or very weak. Terminal leaflet: length of blade medium, width of blade medium, shape of base, rounded. Flowering shoot: very few. Flower pedicel: number of prickles medium. Flower bud: shape of longitudinal section broad ovate. Flower: type double, diameter large, view from above irregularly rounded, side view of upper part flat, side view of lower part flattened convex, fragrance medium. Sepal: extensions absent or very weak. Petal: size large, colour of middle zone of inner side white 155C, colour of marginal zone of inner side white 155C, spot at base absent, reflexing of margin absent or very weak. Outer stamen: colour of filament white. Seed vessel: small. (Note: all RHS colour chart numbers refer to 1995 edition).

Origin and Breeding Spontaneous mutation: arose from Rosa banksiae ‘Pearl’. Mutation took place in Wallis’s Nurseries, Mosgiel, New Zealand. ‘Powder Puff’ was chosen on the basis of flower size and fragrance and plant vigour. Propagation: a number mature stock plants were generated from this mutation through 3 generations by cutting propagation and were found to be uniform and stable. Breeder: Clive Wallis, Mosgiel, New Zealand.

Choice of Comparators ‘Pearl’ was chosen because it is the parent plant from which resulted in the mutation and Rosa banksiae was chosen as a similar variety of common knowledge. No other similar varieties of common knowledge have been identified.

Comparative Trial. Location: Dromana, VIC, autumn-spring 2000. Conditions: trial conducted in pots, plants propagated from cutting, rooted cuttings planted into 200mm pots filed with soilless potting mix (pine bark base), nutrition maintained with slow release fertilisers, pest and disease treatments applied as required. Trial design: ten pots of each variety arranged in a completely randomised design. Measurements: from thirty plants at random. One sample per plant.

Prior Applications and Sales
Country Year Current Status Name Applied
New Zealand 1996 Accepted ‘Powder Puff’

Description: Mark Lunghusen, Croydon, VIC.

regards
sandie