Plectranthus forsteri 'Green on Green'
Agastache ‘Blue Fortune’
Salvia dorrii
Thymus serphyllum 'Annie Hall'
Pelargonium ‘Pungent Peppermint’
Lavandula  × intermedia 'Grosso'
Cercidiphyllum japonicum f. pendulum
Acorus calamus ‘Variegatus’
Parthenium integrifolium
Thymus  × citriodorus 'Argenteus'
Salvia pratensis
Salvia pachyphylla
Artemisia ludoviciana
Salvia reptans
Rosa rugosa 'Polar Ice'
Agastache aurantiaca 'Shades of Orange'
Eucalyptus neglecta
Agastache rupestris
Dennstaedtia punctilobula
Salvia  × sylvestris 'Blue Hill'
Hypericum androsaemum 'Albury Purple'
Caryopteris × clandonensis 'Longwood Blue'
Salvia officinalis
Allium moly and cvs.
Clerodendrum trichotomum
Caryopteris incana 'Jason'
Tanacetum parthenium
Salvia nemorosa
Allium thunbergii
Illicium parviflorum
Agastache rugosa
Symphytum 'Hidcote Blue'
Achillea millefolium ‘Fire King’
Allium schoenoprasum
Geranium macrorrhizum 'Bevan's Variety'
Correa 'Dusky Bells'
Pelargonium sidoides
Pelargonium ‘Lady Scarborough’
Ocimum basilicum
Salvia officinalis 'Minimus'
Salvia  × sylvestris 'May Night'
Calamintha nepeta
Origanum vulgare 'Aureum’
Salvia hians
Salvia officinalis 'Purpurascens'
Dianthus × allwoodii
Gaultheria procumbens
Teucrium chamaedrys var. compactum
Tulbaghia violacea
Plectranthus purpuratus
Thymus polytrichus subsp. britannicus
Ceratotheca triloba
Salvia officinalis 'Icterina'
Chamaemelum nobile and cvs.
Teucrium chamaedrys
Caryopteris  × clandonensis 'First Choice'
Allium senescens var. glaucum
Calocedrus decurrens
Lavandula stoechas
Agastache 'Desert Sunrise'
Thymophylla tenuiloba
Nepeta  × faassenii 'Walker's Low'
Agastache foeniculum 'Golden Jubilee'
Symphytum  × uplandicum 'Axminster Gold'
Santolina chamaecyparissus
Nepeta  × faassenii ‘Dropmore’
Illicium mexicanum
Myrrhis odorata
Pelargonium ‘Attar of Roses’
Salvia officinalis 'Tricolor'
Pelargonium ‘Roger’s Delight’
Salvia nemorosa 'Caradonna'
Salvia officinalis 'Berggarten'
Salvia 'Maraschino'
Agastache cana
Pelargonium tomentosum
Artemisia absinthium
Aster oblongifolius 'October Skies'
Ocimum  × citriodorum 'Pesto Perpetuo'
Salvia  × superba
Thymus pseudolanuginosus
Plectranthus amboinicus
Pelargonium crispum
Ribes sanguineum 'White Icicle'