Nepeta x 'Dawn to Dusk' Nepeta x faassenii
Nepeta x faassenii 'Blue Wonder' Nepeta x faassenii 'Dropmore'
Nepeta x faassenii 'Six Hills Giant' Nepeta x faassenii 'Snowflake'
Nepeta x faassenii 'Souvenir d'Andre Chaudron' Nepeta x faassenii 'Walker's Low'
Nepeta sibirica Nepeta subsessilis
Nephrolepis biserrata Nephrolepis biserrata 'Furcans'
Nephrolepis exaltata Nephrolepis exaltata 'Aurea'
Nephrolepis exaltata 'Bostoniensis' Nephrolepis exaltata 'Crispa'
Nephrolepis exaltata 'Dallas' Nephrolepis exaltata 'Fluffy Ruffles'
Nephrolepis exaltata 'Kimberly Queen' Nephrolepis exaltata 'Portor's Rossevelt'
Nephrolepis laurifolia Nephrophyllidium crista-galli
Neptunia aquatica Neptunia oleracea
Nerium oleander 'Petite Salmon' Nertera granadensis
Nicotiana sylvestris Nidularium fulgens
Nidularium innocentii var. striatum Nierembergia hippomanica
Nierembergia hippomanica 'Mont Blanc' Nierembergia repens
Nipponanthemum nipponicum Nolina bigelowii
Nolina recurvata Nuphar capensis
Nuphar polysepala