Unsupported cultivar names
In the following list, cultivar names have been recorded without attribution or description and additional information is unavailable at the time of going to print.
History or knowledge of these cultivars should be sent to the Registrar for inclusion in the Addendum.
- N
- ‘Naudee’
- ‘Naval Knight’
- ‘Nebraska’
- ‘Nectar Cup’
- ‘Nellie Waite’
- ‘Nemrod’
- ‘Nepalese Prince’
- ‘Nesfield’
- ‘New Azalea’
- ‘New Criterion’
- ‘New Denver’
- ‘New Gypsy’
- ‘New Sancho Panza’
- ‘Night Flowering’
- ‘Nigra’
- ‘Nil Desperandum’
- ‘Nior’
- ‘Nirvana’
- ‘Nitibum’
- ‘Nocturne’
- ‘Nondescript’
- ‘Northern Rival’
- ‘Northumberland Fusilier’
- ‘Nosegay’
- ‘Nova White’
- ‘Nungerfurst’
- ‘Nymph’ O
- ‘O.B.Q.I’
- ‘Ocean Wave’
- ‘Ocellatum’
- ‘Ockley Star’
- ‘Octave Opoix’
- ‘Oddfellow’
- ‘Oddity’
- ‘Odette’
- ‘Odiers’
- ‘Odorate Magniflora’
- ‘Oethe’
- ‘Offenbach’
- ‘Oglevee’s Veronica’
- ‘Old Rose Spice’
- ‘Old-Fashioned Light Purple’
- ‘Olive Baden-Powell’
- ‘Oliver Twist’
- ‘Olympicum Superbum’ o
- ‘om Thumbs Bride’ O
- ‘Omen’
- ‘One Grand’
- ‘Opale’
- ‘Ophelia’