Nandina domestica 'Richmond'
Nandina domestica 'Twilight'
Nepeta faaseni 'Grol'
Nepeta faasenii 'Kit Cat'
Nepeta faassenii 'Six Hills Giant'
Nepeta faassenii 'Walkers Low'
Nepeta kubanica 'Neptune'
Osmanthus x burkwoodii
Pachysandra terminalis 'Green Sheen'
Panicum virgatum 'Purple Breeze'
Panicum virgatum 'Shenandoah'
Pennisetum alop. 'Gelbstiel'
Pennisetum alop. 'Hameln'
Pennisetum alopecuroides 'Black Beauty'
Pennisetum alopecuroides 'Little Bunny'
Pennisetum macrourum
Pennisetum orientale 'Flamingo'
Penstemon 'Schoenholzeri'
Penstemon 'Sour Grapes'
Penstemon digitalis 'Husker Red'
Perovskia atrip. 'Blue Spire'
Perovskia atrip. 'Little Spire'
Perovskia atriplicifolia 'Little Spire'
Persicaria affinis 'Darjeeling Red'
Persicaria amplexicaulis 'Blackfield'
Persicaria amplexicaulis 'Inverleith'
Persicaria amplexicaulis 'White Eastfield'
Phlomis russeliana
Phlomis tuberosa
