Perovskia atriplicifolia 'Blue Steel'

Perovskia atriplicifolia 'Little Spire'

Persicaria affinis 'Darjeeling Red'

Persicaria affinis 'Darjeeling Red'

Persicaria affinis 'Kabouter'

Persicaria affinis 'Superba'

Persicaria amplexicaulis 'Alba'

Persicaria amplexicaulis 'Blackfield'

Persicaria amplexicaulis 'Lisan'

Persicaria amplexicaulis 'Speciosa'

Persicaria amplexicaulis 'Speciosa'

Petrorhagia saxifraga

Phlomis russeliana

Phlomis russeliana

Phlomis tuberosa

Phlox 'Amazing Grace'

Phlox 'Anastasia'

Phlox 'Atropurpurea'

Phlox 'Atropurpurea'

Phlox 'Blue Boy'

Phlox 'Blue Boy'

Phlox 'Blue Paradise'

Phlox 'Bright Eyes'

Phlox 'Brilliant'