| Abelia grandiflora 'Kaleidoscope' |
shrubs & climbers |
Yes |
OK |
OK |
| Acaena inermis 'Purpurea' |
hardy perennials |
Yes |
Yes |
OK |
| Acaena saccaticupula 'Blue Haze' |
hardy perennials |
Yes |
OK |
OK |
| Achillea 'Christine's Pink' |
hardy perennials |
Yes |
OK |
OK |
| Achillea clypeolata |
hardy perennials |
Yes |
OK |
OK |
| Achillea filipendulina 'Gold Plate' |
hardy perennials |
Yes |
OK |
OK |
| Achillea 'Forncett Fletton' |
hardy perennials |
Yes |
OK |
OK |
| Achillea 'Inca Gold' |
hardy perennials |
Yes |
OK |
OK |
| Achillea millefolium 'Paprika' |
hardy perennials |
Yes |
OK |
OK |
| Achillea 'Moonshine' |
hardy perennials |
Yes |
OK |
OK |
| Achillea 'Old Brocade' |
hardy perennials |
Yes |
OK |
OK |
| Achillea 'Taygetea' |
hardy perennials |
Yes |
OK |
OK |
| Achillea 'Wesersandstein' |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus campanulatus var. albidus |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus 'Donau' |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus 'Enigma' |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus Headbourne Hybrids |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus 'Peter Pan' |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus 'Regal Beauty' |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus 'Tinkerbell' |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus 'Torbay' |
hardy perennials |
Yes |
OK |
OK |
| Agapanthus White Dwarf Hybrids |
hardy perennials |
Yes |
OK |
OK |
| Agastache 'Black Adder' |
hardy perennials |
Yes |
OK |
OK |
| Ajuga reptans 'Black Scallop' |
hardy perennials |
OK |
Yes |
Yes |
| Albizia julibrissin f. rosea |
shrubs & climbers |
Yes |
OK |
OK |
| Allium christophii |
hardy perennials |
Yes |
OK |
OK |
| Allium hollandicum 'Purple Sensation' |
hardy perennials |
Yes |
OK |
OK |
| Allium schubertii |
hardy perennials |
Yes |
OK |
OK |
| Allium sphaerocephalon |
hardy perennials |
Yes |
OK |
OK |
| Alstroemeria brasiliensis |
hardy perennials |
Yes |
OK |
OK |
| Alstroemeria psittacina 'Mona Lisa' |
hardy perennials |
Yes |
OK |
OK |
| x Amarcrinum memoria-corsii 'Howardii' |
hardy perennials |
Yes |
OK |
OK |
| Amaryllis belladonna |
hardy perennials |
Yes |
OK |
OK |
| Ampelodesmos mauritanicus |
grasses |
Yes |
OK |
OK |
| Anthemis 'Susanna Mitchell' |
hardy perennials |
Yes |
OK |
OK |
| Anthemis tinctoria 'E.C.Buxton' |
hardy perennials |
Yes |
OK |
OK |
| Anthemis tinctoria 'Sauce Hollandaise' |
hardy perennials |
Yes |
OK |
OK |
| Anthriscus sylvestris 'Ravenswing' |
hardy perennials |
Yes |
Yes |
OK |
| Armeria giradii 'Joystick Lilac Shades' |
hardy perennials |
Yes |
OK |
OK |
| Armeria giradii 'Joystick Red' |
hardy perennials |
Yes |
OK |
OK |
| Armeria giradii 'Joystick White' |
hardy perennials |
Yes |
OK |
OK |
| Armeria maritima 'Rubrifolia' |
hardy perennials |
Yes |
OK |
OK |
| Artemisia ludoviciana 'Silver Queen' |
hardy perennials |
Yes |
OK |
OK |
| Artemisia schmidtiana 'Nana' |
hardy perennials |
Yes |
OK |
OK |
| Arum italicum ssp. italicum |
hardy perennials |
Yes |
Yes |
OK |
| Asclepias tuberosa |
hardy perennials |
Yes |
OK |
OK |
| Asparagus pseudoscaber 'Spitzenschleier' |
hardy perennials |
Yes |
OK |
OK |
| Astrantia major 'Gill Richardson Group' |
hardy perennials |
Yes |
Yes |
OK |
| Begonia grandis ssp. evansiana |
hardy perennials |
OK |
Yes |
OK |
| Begonia grandis ssp. evansiana v. alba |
hardy perennials |
OK |
Yes |
OK |
| Buddleja weyeriana 'Honeycomb' |
shrubs & climbers |
Yes |
OK |
OK |
| Buxus sempervirens 'Elegantissima' |
shrubs & climbers |
Yes |
Yes |
OK |
| Carex comans 'Frosted Curls' |
grasses |
Yes |
Yes |
OK |
| Caryopteris clandonensis 'First Choice' |
shrubs & climbers |
Yes |
OK |
OK |
| Caryopteris clandonensis 'Worcester Gold' |
shrubs & climbers |
Yes |
Yes |
OK |
| Catananche caerulea |
hardy perennials |
Yes |
OK |
OK |
| Ceanothus thyrsiflorus var. repens |
shrubs & climbers |
Yes |
OK |
OK |
| Cestrum parqui |
shrubs & climbers |
OK |
OK |
OK |
| Cheilanthes lanosa |
hardy ferns |
Yes |
Yes |
OK |
| Choisya arizonica 'Aztec Pearl' |
shrubs & climbers |
Yes |
OK |
OK |
| Chrysanthemum 'Clara Curtis' |
hardy perennials |
Yes |
OK |
OK |
| Chrysanthemum 'Duchess of Edinburgh' |
hardy perennials |
Yes |
OK |
OK |
| Chrysanthemum 'Mary Stoker' |
hardy perennials |
Yes |
OK |
OK |
| Chrysanthemum weyrichii |
hardy perennials |
Yes |
OK |
OK |
| Cistus creticus |
shrubs & climbers |
Yes |
OK |
OK |
| Clematis alpina 'Blue Dancer' |
shrubs & climbers |
Yes |
Yes |
Yes |
| Clematis campaniflora |
shrubs & climbers |
Yes |
OK |
OK |
| Clematis 'Venosa Violacea' |
shrubs & climbers |
Yes |
Yes |
OK |
| Clerodendrum bungei |
shrubs & climbers |
Yes |
OK |
OK |
| Coreopsis grandiflora 'Mayfield Giant' |
hardy perennials |
Yes |
OK |
OK |
| Coreopsis lanceolata 'Sterntaler' |
hardy perennials |
Yes |
OK |
OK |
| Coreopsis 'Limerock Ruby' |
hardy perennials |
Yes |
OK |
OK |
| Coreopsis rosea 'American Dream' |
hardy perennials |
Yes |
OK |
OK |
| Coreopsis 'Sunray' |
hardy perennials |
Yes |
OK |
OK |
| Coreopsis verticillata 'Moonbeam' |
hardy perennials |
Yes |
OK |
OK |
| Coreopsis verticillata 'Zagreb' |
hardy perennials |
Yes |
OK |
OK |
| Cosmos atrosanguineus |
hardy perennials |
Yes |
OK |
OK |
| Cotinus coggygyria 'Grace' |
shrubs & climbers |
Yes |
Yes |
OK |
| Dahlia 'Arabian Night' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'Bednall Beauty' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'Bishop Of Landaff' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'Catherine De Neuve' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'David Howard' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'Haresbrook' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'Madame Simone Stappers' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'Moonfire' |
hardy perennials |
Yes |
OK |
OK |
| Dahlia 'Swan Lake' |
hardy perennials |
Yes |
OK |
OK |
| Delosperma congestum |
hardy perennials |
Yes |
OK |
OK |
| Delosperma sutherlandii |
hardy perennials |
Yes |
OK |
OK |
| Diascia barberae 'Blackthorn Apricot' |
hardy perennials |
Yes |
OK |
OK |
| Diascia rigescens |
hardy perennials |
Yes |
OK |
OK |
| Dictamnus albus |
hardy perennials |
Yes |
Yes |
OK |
| Dictamnus albus v. purpureus |
hardy perennials |
Yes |
Yes |
OK |
| Dierama 'Guinevere' |
hardy perennials |
Yes |
OK |
OK |
| Dietes bicolor |
hardy perennials |
Yes |
OK |
OK |
| Digitalis ferruginea |
hardy perennials |
Yes |
Yes |
OK |
| Digitalis 'John Innes Tetra' |
hardy perennials |
Yes |
Yes |
OK |
| Digitalis lutea |
hardy perennials |
Yes |
Yes |
OK |
| Digitalis mertonensis |
hardy perennials |
Yes |
Yes |
OK |
| Digitalis purpurea Foxy Group |
hardy perennials |
Yes |
Yes |
OK |
| Dodonaea viscosa 'Purpurea' |
shrubs & climbers |
Yes |
OK |
OK |
| Echinacea pallida |
hardy perennials |
Yes |
OK |
OK |
| Echinacea paradoxa |
hardy perennials |
Yes |
OK |
OK |
| Echinacea purpurea 'Alba' |
hardy perennials |
Yes |
OK |
OK |
| Echinacea purpurea 'Magnus' |
hardy perennials |
Yes |
OK |
OK |
| Echinacea purpurea 'White Swan' |
hardy perennials |
Yes |
OK |
OK |
| Echinacea tennesseensis |
hardy perennials |
Yes |
OK |
OK |
| Echinacea tennesseensis 'Rocky Top' |
hardy perennials |
Yes |
OK |
OK |
| Elymus magellanicus |
grasses |
Yes |
OK |
OK |
| Eremurus stenophyllus ssp. stenophyllus |
hardy perennials |
Yes |
OK |
OK |
| Erigeron karvinskianus |
hardy perennials |
Yes |
OK |
OK |
| Erigeron 'Quakeress' |
hardy perennials |
Yes |
OK |
OK |
| Eriobotrya japonica |
shrubs & climbers |
Yes |
OK |
OK |
| Eriophyllum lanatum |
hardy perennials |
Yes |
OK |
OK |
| Erodium manescaui |
hardy perennials |
Yes |
OK |
OK |
| Eryngium planum 'Fluela' |
hardy perennials |
Yes |
OK |
OK |
| Erysimum 'Bowles Mauve' |
hardy perennials |
Yes |
OK |
OK |
| Erysimum cheiri 'Harpur Crewe' |
hardy perennials |
Yes |
OK |
OK |
| Erysimum 'Constant Cheer' |
hardy perennials |
Yes |
OK |
OK |
| Erysimum 'Cotswold Gem' |
hardy perennials |
Yes |
OK |
OK |
| Eucomis autumnalis 'White Dwarf' |
hardy perennials |
Yes |
OK |
OK |
| Eucomis bicolor |
hardy perennials |
Yes |
OK |
OK |
| Eucomis comosa |
hardy perennials |
Yes |
OK |
OK |
| Eucomis pole-evansii |
hardy perennials |
Yes |
OK |
OK |
| Eupatorium fistulosum 'Atropurpureum' |
hardy perennials |
Yes |
OK |
OK |
| Eupatorium ligustrinum |
shrubs & climbers |
Yes |
OK |
OK |
| Eupatorium rugosum 'Chocolate' |
hardy perennials |
OK |
Yes |
Yes |
| Euphorbia characias 'Silver Swan' |
hardy perennials |
Yes |
OK |
OK |
| Euphorbia mellifera |
shrubs & climbers |
Yes |
OK |
OK |
| Fatsia japonica |
shrubs & climbers |
Yes |
Yes |
OK |
| Festuca amethystina |
grasses |
Yes |
OK |
OK |
| Festuca glauca 'Auslese' |
grasses |
Yes |
OK |
OK |
| Festuca glauca 'Elijah Blue' |
grasses |
Yes |
OK |
OK |
| Festuca idahoensis |
grasses |
Yes |
Yes |
OK |
| Francoa sonchifolia 'Rogersons Form' |
hardy perennials |
Yes |
Yes |
OK |
| Fuchsia magellanica var. molinae |
shrubs & climbers |
Yes |
OK |
OK |
| Gaillardia 'Burgunder' |
hardy perennials |
Yes |
OK |
OK |
| Galtonia candicans |
hardy perennials |
Yes |
OK |
OK |
| Gaura lindheimeri 'Corrie's Gold' |
hardy perennials |
Yes |
OK |
OK |
| Gaura lindheimeri 'Siskiyou Pink' |
hardy perennials |
Yes |
OK |
OK |
| Geranium cantabrigiense 'Westray' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium cinereum 'Ballerina' |
hardy perennials |
Yes |
OK |
OK |
| Geranium clarkei 'Kashmir Pink' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium clarkei 'Kashmir White' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium 'Dusky Crûg' |
hardy perennials |
Yes |
OK |
OK |
| Geranium 'Guiseppii' |
hardy perennials |
Yes |
OK |
OK |
| Geranium himalayense 'Plenum' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium incanum |
hardy perennials |
Yes |
OK |
OK |
| Geranium 'Johnson's Blue' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium macrorrhizum 'Bevan's Variety' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium macrorrhizum 'Ingwersen's Variety' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium magnificum |
hardy perennials |
Yes |
OK |
OK |
| Geranium 'Mavis Simpson' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium 'Nimbus' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium oxonianum 'Claridge Druce' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium oxonianum f. thurstonianum |
hardy perennials |
Yes |
Yes |
OK |
| Geranium oxonianum 'Walter's Gift' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium 'Patricia' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium phaeum 'Album' |
hardy perennials |
OK |
Yes |
Yes |
| Geranium phaeum 'Lily Lovell' |
hardy perennials |
OK |
Yes |
Yes |
| Geranium phaeum 'Margaret Wilson' |
hardy perennials |
OK |
Yes |
Yes |
| Geranium phaeum 'Mierhausen' |
hardy perennials |
OK |
Yes |
Yes |
| Geranium phaeum 'Samobor' |
hardy perennials |
OK |
Yes |
Yes |
| Geranium phaeum v. phaeum black flowered |
hardy perennials |
OK |
Yes |
Yes |
| Geranium phaeum 'Variegatum' |
hardy perennials |
OK |
Yes |
Yes |
| Geranium 'Phillippe Vapelle' |
hardy perennials |
Yes |
OK |
OK |
| Geranium procurrens |
hardy perennials |
Yes |
Yes |
OK |
| Geranium 'Sabani Blue' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium 'Salome' |
hardy perennials |
Yes |
OK |
OK |
| Geranium sanguineum 'Max Frei' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium sanguineum v. striatum |
hardy perennials |
Yes |
Yes |
OK |
| Geranium 'Sue Crûg' |
hardy perennials |
Yes |
Yes |
OK |
| Geranium sylvaticum 'Album' |
hardy perennials |
OK |
Yes |
OK |
| Geranium tuberosum |
hardy perennials |
Yes |
Yes |
OK |
| Geranium yoshinoi |
hardy perennials |
Yes |
Yes |
OK |
| Geum 'Borisii' |
hardy perennials |
Yes |
Yes |
OK |
| Geum 'Lady Stratheden' |
hardy perennials |
Yes |
Yes |
OK |
| Geum 'Mrs J Bradshaw' |
hardy perennials |
Yes |
Yes |
OK |
| Geum 'Mrs W. Moore' |
hardy perennials |
Yes |
Yes |
OK |
| Geum 'Princes Juliana' |
hardy perennials |
Yes |
Yes |
OK |
| Ginkgo biloba |
shrubs & climbers |
Yes |
OK |
OK |
| Glycyrrhiza glabra |
hardy perennials |
OK |
OK |
OK |
| Gypsophila paniculata 'Schneeflocke' |
hardy perennials |
Yes |
OK |
OK |
| Gypsophila repens 'Rosea' |
hardy perennials |
Yes |
OK |
OK |
| Hebe 'Nicola's Blush' |
shrubs & climbers |
Yes |
OK |
OK |
| Hebe 'Purple Queen' |
shrubs & climbers |
Yes |
OK |
OK |
| Hebe stenophylla |
shrubs & climbers |
Yes |
OK |
OK |
| Hebe 'Wiri Charm' |
shrubs & climbers |
Yes |
OK |
OK |
| Hedera colchica 'Sulphur Heart' |
shrubs & climbers |
Yes |
Yes |
OK |
| Hedera cypria |
shrubs & climbers |
OK |
Yes |
Yes |
| Hedera helix 'Duckfoot' |
shrubs & climbers |
Yes |
Yes |
Yes |
| Hedera helix 'Fantasia' |
shrubs & climbers |
Yes |
Yes |
OK |
| Hedera helix 'Green Ripple' |
shrubs & climbers |
Yes |
Yes |
OK |
| Hedera helix 'Luzii' |
shrubs & climbers |
OK |
Yes |
Yes |
| Helianthus 'Lemon Queen' |
hardy perennials |
Yes |
Yes |
Yes |
| Helianthus 'Loddon Gold' |
hardy perennials |
Yes |
OK |
OK |
| Hystrix patula |
grasses |
OK |
Yes |
Yes |
| Ilex vomitoria |
shrubs & climbers |
Yes |
Yes |
OK |
| Imperata cylindrica 'Rubra' |
grasses |
Yes |
OK |
OK |
| Iris 'Berkeley Gold' |
hardy perennials |
OK |
OK |
OK |
| Iris 'Black Swan' |
hardy perennials |
Yes |
OK |
OK |
| Iris 'Carnaby' |
hardy perennials |
OK |
OK |
OK |
| Iris 'Carnival Time' |
hardy perennials |
Yes |
OK |
OK |
| Iris 'Foggy Dew' |
hardy perennials |
OK |
OK |
OK |
| Iris 'Harriette Halloway' |
hardy perennials |
Yes |
OK |
OK |
| Iris 'Kent Pride' |
hardy perennials |
Yes |
OK |
OK |
| Iris 'Langport Wren' (IB) |
hardy perennials |
OK |
OK |
OK |
| Iris pallida 'Argentea Variegata' |
hardy perennials |
OK |
OK |
OK |
| Iris 'Rajah' |
hardy perennials |
Yes |
OK |
OK |
| Iris 'Winter Olympics' |
hardy perennials |
Yes |
OK |
OK |
| Knautia macedonica 'Mars Midget' |
hardy perennials |
Yes |
Yes |
OK |
| Knautia macedonica Melton Pastels |
hardy perennials |
Yes |
Yes |
OK |
| Kniphofia 'Brimstone' |
hardy perennials |
Yes |
OK |
OK |
| Kniphofia 'Jenny Bloom' |
hardy perennials |
Yes |
Yes |
OK |
| Kniphofia 'Little Maid' |
hardy perennials |
Yes |
Yes |
OK |
| Kniphofia 'Nancy's Red' |
hardy perennials |
Yes |
Yes |
OK |
| Kniphofia 'Royal Standard' |
hardy perennials |
Yes |
OK |
OK |
| Kniphofia 'Timothy' |
hardy perennials |
Yes |
OK |
OK |
| Kniphofia triangularis |
hardy perennials |
Yes |
OK |
OK |
| Lamium maculatum 'Pink Pewter' |
hardy perennials |
OK |
Yes |
Yes |
| Lathyrus latifolius 'Rosa Perle' |
hardy perennials |
Yes |
Yes |
OK |
| Lathyrus latifolius 'White Pearl' |
hardy perennials |
Yes |
Yes |
OK |
| Leucanthemum superbum 'Polaris' |
hardy perennials |
Yes |
OK |
OK |
| Leucanthemum superbum 'john Murray‘ |
hardy perennials |
Yes |
OK |
OK |
| Leucanthemum vulgare 'Filigran' |
hardy perennials |
Yes |
OK |
OK |
| Leycesteria formosa |
shrubs & climbers |
OK |
OK |
OK |
| Liatris spicata |
hardy perennials |
Yes |
OK |
OK |
| Libertia ixioides |
hardy perennials |
Yes |
OK |
OK |
| Liriope muscari 'Big Blue' |
hardy perennials |
Yes |
Yes |
Yes |
| Liriope muscari 'John Burch' |
hardy perennials |
Yes |
Yes |
OK |
| Liriope muscari 'Monroe White' |
hardy perennials |
Yes |
Yes |
OK |
| Lonicera periclymenum 'Graham Thomas' |
shrubs & climbers |
Yes |
Yes |
OK |
| Luma apiculata 'Glanleum Gold' |
shrubs & climbers |
Yes |
Yes |
OK |
| Lychnis arkwrightii 'Vesuvius' |
hardy perennials |
Yes |
OK |
OK |
| Lychnis flos-jovis 'Peggy' |
hardy perennials |
Yes |
OK |
OK |
| Mandevilla laxa |
shrubs & climbers |
Yes |
Yes |
OK |
| Melia azedarach |
shrubs & climbers |
Yes |
OK |
OK |
| Melica transsilvanica 'Red Spire' |
grasses |
OK |
Yes |
Yes |
| Milium effusum 'Yaffle' |
grasses |
OK |
Yes |
Yes |
| Morina longifolia |
hardy perennials |
Yes |
OK |
OK |
| Myrtus communis |
shrubs & climbers |
Yes |
OK |
OK |
| Nepeta govaniana |
hardy perennials |
Yes |
OK |
OK |
| Nepeta racemosa 'Little Titch' |
hardy perennials |
Yes |
OK |
OK |
| Nerine bowdenii |
hardy perennials |
Yes |
OK |
OK |
| Nerine 'Stefanie' |
hardy perennials |
Yes |
OK |
OK |
| Oenothera fruticosa sp. glauca 'Frühlingsgold' |
hardy perennials |
Yes |
OK |
OK |
| Oenothera fruticosa 'Fyrverkeri' |
hardy perennials |
Yes |
OK |
OK |
| Oenothera speciosa 'Siskiyou' |
hardy perennials |
Yes |
OK |
OK |
| Omphalodes cappadocia |
hardy perennials |
OK |
Yes |
OK |
| Ophiopogon jaburan 'Vittatus' |
hardy perennials |
Yes |
OK |
OK |
| Ophiopogon planiscapus 'Albovariegatus' |
hardy perennials |
Yes |
Yes |
OK |
| Ophiopogon planiscapus 'Nigrescens' |
hardy perennials |
Yes |
Yes |
OK |
| Origanum 'Kent Beauty' |
hardy perennials |
Yes |
OK |
OK |
| Origanum vulgare 'Acorn Bank' |
hardy perennials |
Yes |
OK |
OK |
| Origanum vulgare 'Country Cream' |
hardy perennials |
Yes |
OK |
OK |
| Papaver orientale 'Turkish Delight' |
hardy perennials |
Yes |
OK |
OK |
| Papaver orientale 'Patty's Plum' |
hardy perennials |
Yes |
OK |
OK |
| Papaver orientale 'Prinzessin Victoria Louise' |
hardy perennials |
Yes |
OK |
OK |
| Papaver orientale 'Royal Wedding' |
hardy perennials |
Yes |
OK |
OK |
| Pardancanda norrisii 'Dazzler' |
hardy perennials |
Yes |
OK |
OK |
| Passiflora caerulea |
shrubs & climbers |
Yes |
Yes |
OK |
| Passiflora caerulea 'Constance Elliot' |
shrubs & climbers |
Yes |
Yes |
OK |
| Pennisetum alopecuroides f. viridescens |
grasses |
Yes |
OK |
OK |
| Penstemon 'Alice Hindley' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Andenken An Friedrich Hahn' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Apple Blossom' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Beckford' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Blackbird' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon grandiflorus |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon heterophyllus 'Heavenly Blue' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon hirsutus v. pygmaeus |
hardy perennials |
Yes |
OK |
OK |
| Penstemon 'King George V' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Mother of Pearl' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Osprey' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Raven' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon smallii |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'Sour Grapes' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon strictus |
hardy perennials |
Yes |
OK |
OK |
| Penstemon 'Thorn' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon virgatus 'Blue Buckle' |
hardy perennials |
Yes |
Yes |
OK |
| Penstemon 'White Bedder' |
hardy perennials |
Yes |
Yes |
OK |
| Petrorhagia saxifraga |
hardy perennials |
Yes |
OK |
OK |
| Philadelphus 'Virginal' |
shrubs & climbers |
Yes |
Yes |
OK |
| Physocarpus opulifolius 'Diabolo' |
shrubs & climbers |
Yes |
Yes |
OK |
| Physostegia virginiana 'Vivid' |
hardy perennials |
Yes |
Yes |
OK |
| Polemonium yezoense 'Purple Rain' |
hardy perennials |
Yes |
Yes |
OK |
| Polystichum munitum |
hardy ferns |
OK |
Yes |
Yes |
| Potentilla 'Flambeau' |
hardy perennials |
Yes |
OK |
OK |
| Potentilla fruticosa 'Katherine Dykes' |
shrubs & climbers |
Yes |
Yes |
OK |
| Potentilla 'Melton Fire' |
hardy perennials |
Yes |
OK |
OK |
| Potentilla nepalensis 'Ron Mcbeath' |
hardy perennials |
Yes |
OK |
OK |
| Potentilla thurberi 'Monarch's Velvet' |
hardy perennials |
Yes |
OK |
OK |
| Potentilla 'William Rollinson' |
hardy perennials |
Yes |
OK |
OK |
| Reineckea carnea 'Variegata' |
hardy perennials |
OK |
OK |
Yes |
| Ribes gordonianum |
shrubs & climbers |
Yes |
OK |
OK |
| Rosa 'Madame Alfred Carrèire' |
shrubs & climbers |
OK |
Yes |
OK |
| Rosmarinus Prostratus Group |
shrubs & climbers |
Yes |
OK |
OK |
| Rudbeckia fulgida var. sullivantii 'Goldsturm' |
hardy perennials |
Yes |
OK |
OK |
| Rudbeckia nitida |
hardy perennials |
Yes |
OK |
OK |
| Rudbeckia occidentalis 'Green Wizard' |
hardy perennials |
Yes |
OK |
OK |
| Ruellia humilis |
hardy perennials |
OK |
Yes |
OK |
| Rytidosperma arundinaceum |
grasses |
Yes |
Yes |
OK |
| Salvia 'Indigo Spires' |
hardy perennials |
Yes |
OK |
OK |
| Salvia involucrata 'Bethellii' |
hardy perennials |
Yes |
OK |
OK |
| Salvia jamensis 'La Luna' |
shrubs & climbers |
Yes |
OK |
OK |
| Salvia microphylla v. microphylla 'Newby Hall' |
shrubs & climbers |
Yes |
OK |
OK |
| Salvia patens 'Guanajuato' |
hardy perennials |
Yes |
OK |
OK |
| Salvia patens 'White Trophy' |
hardy perennials |
Yes |
OK |
OK |
| Salvia sylvestris 'Rose Queen' |
hardy perennials |
Yes |
OK |
OK |
| Santolina chamaecyparissus |
shrubs & climbers |
Yes |
OK |
OK |
| Sarcococca confusa |
shrubs & climbers |
OK |
Yes |
Yes |
| Scabiosa atropurpurea 'Chile Black' |
hardy perennials |
Yes |
OK |
OK |
| Scabiosa columbaria ssp. ochroleuca |
hardy perennials |
Yes |
OK |
OK |
| Scabiosa columbaria ssp. Ochroleuca 'Moondance' |
hardy perennials |
Yes |
OK |
OK |
| Scabiosa columbaria 'Misty Butterflies' |
hardy perennials |
Yes |
OK |
OK |
| Scabiosa columbaria 'Nana' |
hardy perennials |
Yes |
OK |
OK |
| Scleranthus uniflorus |
hardy perennials |
Yes |
OK |
OK |
| Sedum 'Carl' |
hardy perennials |
Yes |
OK |
OK |
| Sedum erythrostictum 'Frosty Morn' |
hardy perennials |
Yes |
OK |
OK |
| Sedum erythrosticum 'Mediovariegatum' |
hardy perennials |
Yes |
OK |
OK |
| Sedum 'Green Expectations' |
hardy perennials |
Yes |
OK |
OK |
| Sedum 'Herbstfreude' |
hardy perennials |
Yes |
OK |
OK |
| Sedum 'Purple Emperor' |
hardy perennials |
Yes |
OK |
OK |
| Sedum spectabile 'Iceberg' |
hardy perennials |
Yes |
OK |
OK |
| Sedum telephium 'Matrona' |
hardy perennials |
Yes |
OK |
OK |
| Sedum 'Vera Jameson' |
hardy perennials |
Yes |
OK |
OK |
| Senecio doria |
hardy perennials |
Yes |
OK |
OK |
| Senecio polyodon |
hardy perennials |
Yes |
OK |
OK |
| Senecio scandens |
shrubs & climbers |
Yes |
Yes |
OK |
| Sesleria insularis |
grasses |
Yes |
Yes |
OK |
| Sidalcea 'Loveliness' |
hardy perennials |
Yes |
OK |
OK |
| Sidalcea 'Wine Red' |
hardy perennials |
Yes |
OK |
OK |
| Silene fimbriata |
hardy perennials |
Yes |
Yes |
OK |
| Sisyrinchium 'E.K Balls' |
hardy perennials |
Yes |
OK |
OK |
| Sisyrinchium 'Iceberg' |
hardy perennials |
Yes |
OK |
OK |
| Sisyrinchium 'Quaint and Queer' |
hardy perennials |
Yes |
OK |
OK |
| Solanum crispum 'Glasnevin' |
shrubs & climbers |
Yes |
OK |
OK |
| Solanum laxum |
shrubs & climbers |
Yes |
Yes |
OK |
| Solanum laxum 'Album' |
shrubs & climbers |
Yes |
Yes |
OK |
| Solidago uliginosa |
hardy perennials |
Yes |
OK |
OK |
| Sporobolus airoides |
grasses |
Yes |
OK |
OK |
| Stachys byzantina `Silken Fleece' |
hardy perennials |
Yes |
OK |
OK |
| Stachys coccinea |
hardy perennials |
Yes |
OK |
OK |
| Stachys monieri |
hardy perennials |
Yes |
OK |
OK |
| Stachys thunbergii |
hardy perennials |
Yes |
OK |
OK |
| Stipa gigantea |
grasses |
Yes |
OK |
OK |
| Stipa tenuissima |
grasses |
Yes |
OK |
OK |
| Stokesia laevis |
hardy perennials |
Yes |
OK |
OK |
| Stokesia laevis 'Mary Gregory' |
hardy perennials |
Yes |
OK |
OK |
| Stokesia laevis 'Purple Parasols' |
hardy perennials |
Yes |
OK |
OK |
| Stokesia laevis 'Silver Moon' |
hardy perennials |
Yes |
OK |
OK |
| Trachelospermum asiaticum 'Goshiki' |
shrubs & climbers |
Yes |
Yes |
OK |
| Trachelospermum jasminoides |
shrubs & climbers |
Yes |
OK |
OK |
| Trachelospermum jasminoides 'Variegatum' |
shrubs & climbers |
Yes |
Yes |
OK |
| Trachelospermum jasminoides 'Wilsonii' |
shrubs & climbers |
Yes |
Yes |
OK |
| Tritonia distica ssp. rubrolucens |
hardy perennials |
Yes |
OK |
OK |
| Tulbaghia alliacea |
hardy perennials |
Yes |
OK |
OK |
| Tulbaghia cepacea v. maritima |
hardy perennials |
Yes |
Yes |
OK |
| Tulbaghia 'Fairy Star' |
hardy perennials |
Yes |
OK |
OK |
| Tulbaghia 'John May's Special' |
hardy perennials |
Yes |
OK |
OK |
| Tulbaghia violacea |
hardy perennials |
Yes |
OK |
OK |
| Tulbaghia violacea 'Silver Lace' |
hardy perennials |
Yes |
OK |
OK |
| Verbena bonariensis |
hardy perennials |
Yes |
OK |
OK |
| Verbena 'Hammerstien Pink' |
hardy perennials |
Yes |
OK |
OK |
| Verbena 'Homestead Purple' |
hardy perennials |
Yes |
OK |
OK |
| Verbena 'La France' |
hardy perennials |
Yes |
OK |
OK |
| Verbena rigida |
hardy perennials |
Yes |
OK |
OK |
| Verbena rigida 'Polaris' |
hardy perennials |
Yes |
OK |
OK |
| Verbena 'Seabrook's Lavender' |
hardy perennials |
Yes |
OK |
OK |
| Veronica gentianoides |
hardy perennials |
Yes |
Yes |
OK |
| Veronicastrum sibiricum |
hardy perennials |
OK |
Yes |
OK |
| Waldsteinea ternata |
hardy perennials |
Yes |
Yes |
Yes |
| Zephyranthes candida |
hardy perennials |
Yes |
OK |
OK |