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